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  • Undefined control sequence at first line of a document

    - by Jayomat
    \documentclass{book} \usepackage{amsmath} \usepackage[german]{babel} \usepackage{amssymb} \usepackage{amsxtra} \usepackage[dvips]{epsfig,psfrag} \usepackage{listings} .... this is how my file starts. I didn't even edit it, I received it like this. However, if I want to make a pdf, it gives me the undefined control sequence error at the first line... What is wrong??

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  • Loading an image sequence in InterfaceBuilder -ObjectiveC

    - by eco_bach
    Hi Using Actionscript and or in the Flash IDE you can either instantiate bitmaps from the library, or simply import bitmaps into the timeline of a MovieClip to create an image sequence. How would you do the same thing in InterfaceBuilder and-or using ObjectiveC? Do I need to create a new view for each and every image?

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  • Minimize the sequence by putting appropriate operations ' DP'

    - by Vikas
    Given a sequence,say, 222 We have to put a '+' or '* ' between each adjacent pair. '* ' has higher precedence over '+' We have to o/p the string whose evaluation leads to minimum value. O/p must be lexicographically smallest if there are more than one. inp:222 o/p: 2*2+2 Explaination: 2+2+2=6 2+2*2=6 2*2+2=6 of this 3rd is lexicographically smallest. I was wondering how to construct a DP solution for this.

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  • C# Check for missing number in sequence

    - by Jon
    I have an List<int> which contains 1,2,4,7,9 for example. I have a range from 0 to 10. Is there a way to determine what numbers are missing in that sequence? I thought LINQ might provide an option but I can't see one In the real world my List could contain 100,000 items so performance is key

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  • Mixed surrogate composite key insert in JPA 2.0, PostgreSQL and Hibernate 3.5

    - by Gerald
    First off, we are using JPA 2.0 and Hibernate 3.5 as persistence provider on a PostgreSQL database. We successfully use the sequence of the database via the JPA 2.0 annotations as an auto-generated value for single-field-surrogate-keys and all works fine. Now we are implementing a bi-temporal database-scheme that requires a mixed key in the following manner: Table 1: id (pk, integer, auto-generated-sequence) validTimeBegin (pk, dateTime) validTimeEnd (dateTime) firstName (varChar) Now we have a problem. You see, if we INSERT a new element, the field id is auto-generated and that's fine. Only, if we want to UPDATE the field within this scheme, then we have to change the validTimeBegin column WITHOUT changing the id-field and insert it as a new row like so: BEFORE THE UPDATE OF THE ROW: |---|-------------------------|-------------------------|-------------------| | id| validTimeBegin | validTimeEnd | firstName | |---|-------------------------|-------------------------|-------------------| | 1| 2010-05-01-10:00:00.000 | NULL | Gerald | |---|-------------------------|-------------------------|-------------------| AFTER THE UPDATE OF THE ROW happening at exactly 2010-05-01-10:35:01.788 server-time: (we update the person with the id:1 to reflect his new first name...) |---|-------------------------|-------------------------|-------------------| | id| validTimeBegin | validTimeEnd | firstName | |---|-------------------------|-------------------------|-------------------| | 1| 2010-05-01-10:00:00.000 | 2010-05-01-10:35:01.788 | Gerald | |---|-------------------------|-------------------------|-------------------| | 1| 2010-05-01-10:35:01.788 | NULL | Jerry | |---|-------------------------|-------------------------|-------------------| So our problem is, that this doesn't work at all using an auto-generated-sequence for the field id because when inserting a new row then the id ALWAYS is auto-generated although it really is part of a composite key which should sometimes behave differently. So my question is: Is there a way to tell hibernate via JPA to stop auto-generating the id-field in the case I want to generate a new variety of the same person and go on as usual in every other case or do I have to take over the whole id-generation with custom code? Thanks in advance, Gerald

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  • MidiSystem.getSequencer() returns Audio Device Unavailable

    - by ksemeks
    I've keep having an exception thrown, on and on. When i try to make a new Sequencer object, i keep getting the javax.sound.midi.MidiUnavailableException: Audio Device Unavailable exception. So, here's the code: import javax.sound.midi.*; public class MiniMusicPlayer1 { public static void main(String[] args) { try { Sequencer sequencer = MidiSystem.getSequencer(); sequencer.open(); Sequence seq = new Sequence(Sequence.PPQ, 4); Track track = seq.createTrack(); for (int i = 5; i < 61; i += 4) { track.add(makeEvent(144, 1, i, 100, i)); track.add(makeEvent(128, 1, i, 100, (i+2))); } sequencer.setSequence(seq); sequencer.setTempoInBPM(220); sequencer.start(); } catch (Exception e) { e.printStackTrace(); } } public static MidiEvent makeEvent(int comd, int chan, int one, int two, int tick) { MidiEvent event = null; try { ShortMessage a = new ShortMessage(); a.setMessage(comd, chan, one, two); event = new MidiEvent(a, tick); } catch (Exception e) { e.printStackTrace(); } return event; } } And here's the complete error (at compile): javax.sound.midi.MidiUnavailableException: Audio Device Unavailable at com.sun.media.sound.MixerSynth.implOpen(MixerSynth.java:165) at com.sun.media.sound.AbstractMidiDevice.doOpen(AbstractMidiDevice.java:144) at com.sun.media.sound.AbstractMidiDevice.openInternal(AbstractMidiDevice.java:134) at com.sun.media.sound.AbstractMidiDevice.getReceiverReferenceCounting(AbstractMidiDevice.java:339) at javax.sound.midi.MidiSystem.getReceiver(MidiSystem.java:243) at javax.sound.midi.MidiSystem.getSequencer(MidiSystem.java:442) at javax.sound.midi.MidiSystem.getSequencer(MidiSystem.java:348) at MiniMusicPlayer1.main(MiniMusicPlayer1.java:9) First i was unable to play MIDI files on my pc, but then i got it to work, so now i can play MIDI files, that's okay. I tried even to close every process which uses my sound card, but the error is still there. Anyone can help me?

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  • DotNetOpenAuth OpenID Provider "Sequence contains more than one element"

    - by Matthew Johnson
    Hello, all, I'm having trouble implementing my OpenID provider with DNOA 3.4.3. Everything was going absolutely peachy until I needed AX support as well. I set AXFetchAsSregTransform in the web config, as recommended by Andrew at http://groups.google.com/group/dotnetopenid/browse_thread/thread/5629a24c0a7e8d99. Doing this caused me to get the exception "Sequence Contains More Than One Element" on my decide.aspx page, however, and I haven't been able to get past it. The following line is throwing the exception: Edit: Strangely enough, this is not the line throwing the error anymore. The SendResponse() is now triggering the exception ClaimsRequest requestedFields = ProviderEndpoint.PendingRequest.GetExtension(); ProviderEndpoint.SendResponse() Any thoughts on why this may be? Any help would be greatly appreciated! The logs leading up to the error are as follows: 2010-04-28 12:38:20,247 (GMT-7) [5] INFO DotNetOpenAuth.Messaging.Channel - Scanning incoming request for messages: https://myprovider/provider.ashx?openid.ns=http%3A%2F%2Fspecs.openid.net%2Fauth%2F2.0&openid.claimed_id=http%3A%2F%2Fspecs.openid.net%2Fauth%2F2.0%2Fidentifier_select&openid.identity=http%3A%2F%2Fspecs.openid.net%2Fauth%2F2.0%2Fidentifier_select&openid.mode=checkid_setup&openid.ns.ext1=http%3A%2F%2Fopenid.net%2Fsrv%2Fax%2F1.0&openid.ext1.mode=fetch_request&openid.ext1.type.email=http%3A%2F%2Faxschema.org%2Fcontact%2Femail&openid.ext1.type.fullname=http%3A%2F%2Faxschema.org%2FnamePerson&openid.ext1.type.language=http%3A%2F%2Faxschema.org%2Fpref%2Flanguage&openid.ext1.required=email&openid.return_to=http%3A%2F%2Fmyrelyingparty%2Flogin.jsp%3Foidreturn%3D%252Fhome&openid.assoc_handle=%7B634080802953194640%7D%7BHxjFNw==%7D%7B20%7D&openid.realm=http%3A%2F%2Fmyrelyingparty 2010-04-28 12:38:20,285 (GMT-7) [5] INFO DotNetOpenAuth.Messaging.Channel - Processing incoming CheckIdRequest (2.0) message: openid.claimed_id: http://specs.openid.net/auth/2.0/identifier_select openid.identity: http://specs.openid.net/auth/2.0/identifier_select openid.assoc_handle: {634080802953194640}{HxjFNw==}{20} openid.return_to: http://myrelyingparty/login.jsp?oidreturn=%2Fhome openid.realm: http://myrelyingparty/ openid.mode: checkid_setup openid.ns: http://specs.openid.net/auth/2.0 openid.ns.ext1: http://openid.net/srv/ax/1.0 openid.ext1.mode: fetch_request openid.ext1.type.email: http://axschema.org/contact/email openid.ext1.type.fullname: http://axschema.org/namePerson openid.ext1.type.language: http://axschema.org/pref/language openid.ext1.required: email 2010-04-28 12:38:22,773 (GMT-7) [14] INFO DotNetOpenAuth.Messaging.Channel - Scanning incoming request for messages: https://myprovider/login.aspx?ReturnUrl=%2fdecide.aspx 2010-04-28 12:38:36,167 (GMT-7) [5] INFO DotNetOpenAuth.Messaging.Channel - Scanning incoming request for messages: https://myprovider/login.aspx?ReturnUrl=%2fdecide.aspx 2010-04-28 12:38:38,147 (GMT-7) [14] ERROR DotNetOpenAuth.Messaging - Protocol error: An HTTP request to the realm URL (http://myrelyingparty/) resulted in a redirect, which is not allowed during relying party discovery. at DotNetOpenAuth.Messaging.ErrorUtilities.VerifyProtocol(Boolean condition, String message, Object[] args) at DotNetOpenAuth.OpenId.Realm.Discover(IDirectWebRequestHandler requestHandler, Boolean allowRedirects) at DotNetOpenAuth.OpenId.Realm.DiscoverReturnToEndpoints(IDirectWebRequestHandler requestHandler, Boolean allowRedirects) at DotNetOpenAuth.OpenId.Provider.HostProcessedRequest.IsReturnUrlDiscoverableCore(OpenIdProvider provider) at DotNetOpenAuth.OpenId.Provider.HostProcessedRequest.IsReturnUrlDiscoverable(OpenIdProvider provider) at OpenIdProviderWebForms.decide.Page_Load(Object src, EventArgs e) at System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) at System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) at System.Web.UI.Control.OnLoad(EventArgs e) at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest() at System.Web.UI.Page.ProcessRequest(HttpContext context) at ASP.decide_aspx.ProcessRequest(HttpContext context) at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) at System.Web.HttpApplication.PipelineStepManager.ResumeSteps(Exception error) at System.Web.HttpApplication.BeginProcessRequestNotification(HttpContext context, AsyncCallback cb) at System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) at System.Web.Hosting.PipelineRuntime.ProcessRequestNotificationHelper(IntPtr managedHttpContext, IntPtr nativeRequestContext, IntPtr moduleData, Int32 flags) at System.Web.Hosting.PipelineRuntime.ProcessRequestNotification(IntPtr managedHttpContext, IntPtr nativeRequestContext, IntPtr moduleData, Int32 flags) at System.Web.Hosting.PipelineRuntime.ProcessRequestNotificationHelper(IntPtr managedHttpContext, IntPtr nativeRequestContext, IntPtr moduleData, Int32 flags) at System.Web.Hosting.PipelineRuntime.ProcessRequestNotification(IntPtr managedHttpContext, IntPtr nativeRequestContext, IntPtr moduleData, Int32 flags) 2010-04-28 12:38:38,149 (GMT-7) [14] INFO DotNetOpenAuth.Yadis - Relying party discovery at URL http://myrelyingparty/ failed. DotNetOpenAuth.Messaging.ProtocolException: An HTTP request to the realm URL (http://myrelyingparty/) resulted in a redirect, which is not allowed during relying party discovery. at DotNetOpenAuth.Messaging.ErrorUtilities.VerifyProtocol(Boolean condition, String message, Object[] args) in c:\TeamCity\buildAgent\work\bf9e2ca68b75a334\src\DotNetOpenAuth\Messaging\ErrorUtilities.cs:line 235 at DotNetOpenAuth.OpenId.Realm.Discover(IDirectWebRequestHandler requestHandler, Boolean allowRedirects) in c:\TeamCity\buildAgent\work\bf9e2ca68b75a334\src\DotNetOpenAuth\OpenId\Realm.cs:line 446 at DotNetOpenAuth.OpenId.Realm.DiscoverReturnToEndpoints(IDirectWebRequestHandler requestHandler, Boolean allowRedirects) in c:\TeamCity\buildAgent\work\bf9e2ca68b75a334\src\DotNetOpenAuth\OpenId\Realm.cs:line 424 at DotNetOpenAuth.OpenId.Provider.HostProcessedRequest.IsReturnUrlDiscoverableCore(OpenIdProvider provider) in c:\TeamCity\buildAgent\work\bf9e2ca68b75a334\src\DotNetOpenAuth\OpenId\Provider\HostProcessedRequest.cs:line 142 2010-04-28 12:38:42,076 (GMT-7) [8] ERROR OpenIdProviderWebForms.Global - An unhandled exception was raised. Details follow: System.Web.HttpUnhandledException: Exception of type 'System.Web.HttpUnhandledException' was thrown. --- System.InvalidOperationException: Sequence contains more than one element at System.Linq.Enumerable.SingleOrDefault[TSource](IEnumerable`1 source) at DotNetOpenAuth.OpenId.Provider.Request.GetExtension[T]() in c:\TeamCity\buildAgent\work\bf9e2ca68b75a334\src\DotNetOpenAuth\OpenId\Provider\Request.cs:line 176 at DotNetOpenAuth.OpenId.Extensions.ExtensionsInteropHelper.ConvertSregToMatchRequest(IHostProcessedRequest request) in c:\TeamCity\buildAgent\work\bf9e2ca68b75a334\src\DotNetOpenAuth\OpenId\Extensions\ExtensionsInteropHelper.cs:line 180 at DotNetOpenAuth.OpenId.Behaviors.AXFetchAsSregTransform.DotNetOpenAuth.OpenId.Provider.IProviderBehavior.OnOutgoingResponse(IAuthenticationRequest request) in c:\TeamCity\buildAgent\work\bf9e2ca68b75a334\src\DotNetOpenAuth\OpenId\Behaviors\AXFetchAsSregTransform.cs:line 139 at DotNetOpenAuth.OpenId.Provider.OpenIdProvider.ApplyBehaviorsToResponse(IRequest request) in c:\TeamCity\buildAgent\work\bf9e2ca68b75a334\src\DotNetOpenAuth\OpenId\Provider\OpenIdProvider.cs:line 482 at DotNetOpenAuth.OpenId.Provider.OpenIdProvider.SendResponse(IRequest request) in c:\TeamCity\buildAgent\work\bf9e2ca68b75a334\src\DotNetOpenAuth\OpenId\Provider\OpenIdProvider.cs:line 325 at OpenIdProviderWebForms.decide.Yes_Click(Object sender, EventArgs e) in C:\Projects\OpenIdProviderWebForms\decide.aspx.cs:line 130 at System.Web.UI.WebControls.Button.OnClick(EventArgs e) at System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) --- End of inner exception stack trace --- at System.Web.UI.Page.HandleError(Exception e) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest() at System.Web.UI.Page.ProcessRequest(HttpContext context) at ASP.decide_aspx.ProcessRequest(HttpContext context) in c:\Windows\Microsoft.NET\Framework64\v2.0.50727\Temporary ASP.NET Files\root\7f580b93\b3e4d917\App_Web_tulh9ymv.1.cs:line 0 at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

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  • Play Framework: Error getting sequence nextval using H2 in-memory database

    - by alexhanschke
    As the title suggests, I get an error running Play 2.0.1 Tests using a FakeApplication w/ H2 in memory. I set up a basic unit test: public class ModelTest { @Test public void checkThatIndustriesExist() { running(fakeApplication(inMemoryDatabase()), new Runnable() { public void run() { Industry industry = new Industry(); industry.name = "Some name"; industry.shortname = "some-name"; industry.save(); assertThat(Industry.find.all()).hasSize(1); } }); } Which yields the following exception: [info] test.ModelTest [error] Test test.ModelTest.checkThatIndustriesExist failed: Error getting sequence nextval [error] at com.avaje.ebean.config.dbplatform.SequenceIdGenerator.getMoreIds(SequenceIdGenerator.java:213) [error] at com.avaje.ebean.config.dbplatform.SequenceIdGenerator.loadMoreIds(SequenceIdGenerator.java:163) [error] at com.avaje.ebean.config.dbplatform.SequenceIdGenerator.nextId(SequenceIdGenerator.java:118) [error] at com.avaje.ebeaninternal.server.deploy.BeanDescriptor.nextId(BeanDescriptor.java:1218) [error] at com.avaje.ebeaninternal.server.persist.DefaultPersister.setIdGenValue(DefaultPersister.java:1304) [error] at com.avaje.ebeaninternal.server.persist.DefaultPersister.insert(DefaultPersister.java:403) [error] at com.avaje.ebeaninternal.server.persist.DefaultPersister.saveEnhanced(DefaultPersister.java:345) [error] at com.avaje.ebeaninternal.server.persist.DefaultPersister.saveRecurse(DefaultPersister.java:315) [error] at com.avaje.ebeaninternal.server.persist.DefaultPersister.save(DefaultPersister.java:282) [error] at com.avaje.ebeaninternal.server.core.DefaultServer.save(DefaultServer.java:1577) [error] at com.avaje.ebeaninternal.server.core.DefaultServer.save(DefaultServer.java:1567) [error] at com.avaje.ebean.Ebean.save(Ebean.java:538) [error] at play.db.ebean.Model.save(Model.java:76) [error] at test.ModelTest$1.run(ModelTest.java:24) [error] at play.test.Helpers.running(Helpers.java:277) [error] at test.ModelTest.checkThatIndustriesExist(ModelTest.java:21) [error] ... [error] Caused by: org.h2.jdbc.JdbcSQLException: Syntax Fehler in SQL Befehl "SELECT INDUSTRY_SEQ.NEXTVAL UNION[*] SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL "; erwartet "identifier" [error] Syntax error in SQL statement "SELECT INDUSTRY_SEQ.NEXTVAL UNION[*] SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL UNION SELECT INDUSTRY_SEQ.NEXTVAL "; expected "identifier"; SQL statement: [error] select industry_seq.nextval union select industry_seq.nextval union select industry_seq.nextval union select industry_seq.nextval union select industry_seq.nextval union select industry_seq.nextval union select industry_seq.nextval union select industry_seq.nextval union select industry_seq.nextval union select industry_seq.nextval union select industry_seq.nextval union select industry_seq.nextval union select industry_seq.nextval union select industry_seq.nextval union select industry_seq.nextval union select industry_seq.nextval union select industry_seq.nextval union select industry_seq.nextval union select industry_seq.nextval union select industry_seq.nextval [42001-158] [error] at org.h2.message.DbException.getJdbcSQLException(DbException.java:329) [error] at org.h2.message.DbException.get(DbException.java:169) [error] at org.h2.message.DbException.getSyntaxError(DbException.java:194) [error] at org.h2.command.Parser.readColumnIdentifier(Parser.java:2777) [error] at org.h2.command.Parser.readTermObjectDot(Parser.java:2336) [error] at org.h2.command.Parser.readTerm(Parser.java:2453) [error] at org.h2.command.Parser.readFactor(Parser.java:2035) [error] at org.h2.command.Parser.readSum(Parser.java:2022) [error] at org.h2.command.Parser.readConcat(Parser.java:1995) [error] at org.h2.command.Parser.readCondition(Parser.java:1860) [error] at org.h2.command.Parser.readAnd(Parser.java:1841) [error] at org.h2.command.Parser.readExpression(Parser.java:1833) [error] at org.h2.command.Parser.parseSelectSimpleSelectPart(Parser.java:1746) [error] at org.h2.command.Parser.parseSelectSimple(Parser.java:1778) [error] at org.h2.command.Parser.parseSelectSub(Parser.java:1673) [error] at org.h2.command.Parser.parseSelectUnion(Parser.java:1518) [error] at org.h2.command.Parser.parseSelect(Parser.java:1506) [error] at org.h2.command.Parser.parsePrepared(Parser.java:405) [error] at org.h2.command.Parser.parse(Parser.java:279) [error] at org.h2.command.Parser.parse(Parser.java:251) [error] at org.h2.command.Parser.prepareCommand(Parser.java:217) [error] at org.h2.engine.Session.prepareLocal(Session.java:415) [error] at org.h2.engine.Session.prepareCommand(Session.java:364) [error] at org.h2.jdbc.JdbcConnection.prepareCommand(JdbcConnection.java:1119) [error] at org.h2.jdbc.JdbcPreparedStatement.<init>(JdbcPreparedStatement.java:71) [error] at org.h2.jdbc.JdbcConnection.prepareStatement(JdbcConnection.java:267) [error] at com.jolbox.bonecp.ConnectionHandle.prepareStatement(ConnectionHandle.java:820) [error] at com.avaje.ebean.config.dbplatform.SequenceIdGenerator.getMoreIds(SequenceIdGenerator.java:193) [error] ... 80 more My model looks like this: @Entity @Table(name = "industry") public class Industry extends Model { @Id public Long id; public String name; public String shortname; // called in the view to trigger lazy-loading public String getName() { return name; } public static Finder<Long, Industry> find = new Finder<Long, Industry>(Long.class, Industry.class); } ... and finally the relevant part from my initial evolution: create table industry ( id bigint not null, name varchar(255), shortname varchar(255), constraint pk_industry primary key (id) } create sequence industry_seq start with 1000; Everything works fine running on my PostgreSQL DB, and from my point of view the code is not any different from the Play2.0 Computer Database Sample. I am happy for any help - thanks! Regards, Alex

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  • Linq Problem - Sequence contains no matching element

    - by Pino
    Ok I have the following, set-up and am recieving the following error. returnData.Options = this.ProductOptions.Select(o => o.ToDataModel()).ToList(); This line of code should do a conversion from DAL Entity (Subsonic) to a ViewModel. However I am recieving the following error message Server Error in '/' Application. Sequence contains no matching element Now, I've checked and the this.ProductOptions variable contains 3 results. Whats does this error meen and how can I debug it?

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  • CCSprite following a sequence of CGPoints

    - by pgb
    I'm developing a line drawing game, similar to Flight Control, Harbor Master, and others in the appstore, using Cocos2D. For this game, I need a CCSprite to follow a line that the user has drawn. I'm storing a sequence of CGPoint structs in an NSArray, based on the points I get in the touchesBegin and touchesMoved messages. I now have the problem of how to make my sprite follow them. I have a tick method, that is called at the framerate speed. In that tick method, based on the speed and current position of the sprite, I need to calculate its next position. Is there any standard way to achieve this? My current approach is calculate the line between the last "reference point" and the next one, and calculate the next point in that line. The problem I have is when the sprite "turns" (moves from one segment of the line to another). Any hint will be greatly appreciated.

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  • Java doesn't work with regex \s, says: invalid escape sequence

    - by Jayomat
    hi, I want to replace all whitespace characters in a string with a "+" and all "ß" with "ss"... it works well for "ß", but somehow eclipse won't let me use \s for a whitespace.. I tried "\t" instead, but it doesn't work either.. I get the following error: Invalid escape sequence (valid ones are \b \t \n \f \r \" \' \ ) this is my code: try { String temp1 = from.getText().toString(); start_from = temp1.replaceAll("ß", "ss"); start_from = start_from.replaceAll("\s", "+"); } why doesn't it work? is it a problem with android, eclipse or what? thanks in advance!

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  • How to execute several batch commands in sequence

    - by ptikobj
    I want to create a Windows XP batch script that sequentially performs something like the following: @echo off :: build everything cd \workspace\project1 mvn clean install cd ..\project2 mvn clean install :: run some java file cd \workspace\project3 java -jar somefile.jar When I create a Batch script like this (following these instructions), I still have the problem that the script stops doing something after the first mvn clean install and then displays the command line. How can i execute all of these commands in sequence in one batch file? I don't want to refer to other files, I want to do it in one file.

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  • Subsonic 3 - Sequence contains no matching element

    - by bastos.sergio
    I need help creating a LINQ SQL with subsonic. First the basics, this works fine: var query = (from o in bd.concelhos orderby o.descricao select o); var results = query.ToList<concelhos>(); However, I want to filter out some columns and I have created the following code: var query = (from o in bd.concelhos orderby o.descricao select new FilteredConcelhos { id = o.idDistrito + "/" + o.idConcelho, descricao = o.descricao }); var results = query.ToList<FilteredConcelhos>(); which errors out in the ToList method with the description "Sequence contains no matching element" Any help would be great with this...

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  • latex undefined control sequence with tableofcontents

    - by munchybunch
    I was using \documentclass{amsmath} for awhile with no issues, but I recently wanted to switch to the normal \documentclass{article} because I thought it looked nicer. However, now my \tableofcontents command produces this error: ! Undefined control sequence. <argument> \tocsection {}{1}{Purpose} l.1 ...ne {section}{\tocsection {}{1}{Purpose}}{4} ? I'm writing a research paper with latex, and Purpose is the first section (the command I'm using is \section{Purpose}). It's saying line 1 has the error, which is \documentclass{article}. Can anyone help me with this error?

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  • MSBuild Build Sequence

    - by pm_2
    I got this from here. <ItemGroup> <SolutionToBuild Include="$(SolutionRoot)\path\MySolution.sln /> <SolutionToBuild Include="$(SolutionRoot)\Scribble\scribble.sln" /> <SolutionToBuild Include="$(SolutionRoot)\HelloWorld\HelloWorld.sln" /> <SolutionToBuild Include="$(SolutionRoot)\TestProject1\TestProject1.sln" /> </ItemGroup> It says that the sequence of the build is determined by the order above. So, for example, MySolution would be built before scribble. However, is this safe if scribble is dependant on MySolution? If MySolution and scribble are changed simultaneously, will the build wait for MySolution to be completely compiled before moving to the next project?

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  • I'm using a sequence in Factory Girl to get unique values but I'm getting validation errors

    - by Sean Seefried
    I have a model defined this way class Lga < ActiveRecord::Base validates_uniqueness_of :code validates_presence_of :name end I've defined a factory for Lgas with Factory.sequence(:lga_id) { |n| n + 10000 } Factory.define :lga do |l| id = Factory.next :lga_id l.code "lga_#{id}" l.name "LGA #{id}" end However, when I run Factory.create(:lga) Factory.create(:lga) in script/console I get >> Factory.create(:lga) => #<Lga id: 2, code: "lga_10001", name: "LGA 10001", created_at: "2010-03-18 23:55:29", updated_at: "2010-03-18 23:55:29"> >> Factory.create(:lga) ActiveRecord::RecordInvalid: Validation failed: Code has already been taken

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  • BioPython: extracting sequence IDs from a Blast output file

    - by Jon
    Hi, I have a BLAST output file in XML format. It is 22 query sequences with 50 hits reported from each sequence. And I want to extract all the 50x22 hits. This is the code I currently have, but it only extracts the 50 hits from the first query. from Bio.Blast import NCBIXM blast_records = NCBIXML.parse(result_handle) blast_record = blast_records.next() save_file = open("/Users/jonbra/Desktop/my_fasta_seq.fasta", 'w') for alignment in blast_record.alignments: for hsp in alignment.hsps: save_file.write('>%s\n' % (alignment.title,)) save_file.close() Somebody have any suggestions as to extract all the hits? I guess I have to use something else than alignments. Hope this was clear. Thanks! Jon

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  • Explanation of JAXB error: Invalid byte 1 of 1-byte UTF-8 sequence

    - by Marcus
    We're parsing an XML document using JAXB and get this error: [org.xml.sax.SAXParseException: Invalid byte 1 of 1-byte UTF-8 sequence.] at javax.xml.bind.helpers.AbstractUnmarshallerImpl.createUnmarshalException(AbstractUnmarshallerImpl.java:315) What exactly does this mean and how can we resolve this?? We are executing the code as: jaxbContext = JAXBContext.newInstance(Results.class); Unmarshaller unmarshaller = jaxbContext.createUnmarshaller(); unmarshaller.setSchema(getSchema()); results = (Results) unmarshaller.unmarshal(new FileInputStream(inputFile)); Update Issue appears to be due to this "funny" character in the XML file: ¿ Why would this cause such a problem??

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  • ruby 1.9: invalid byte sequence in UTF-8

    - by Marc Seeger
    I'm writing a crawler in ruby (1.9) that consumes lots of HTML from a lot of random sites. When trying to extract links, I decided to just use .scan(/href="(.*?)"/i) instead of nokogiri/hpricot (major speedup). The problem is that I now receive a lot of "invalid byte sequence in UTF-8" errors. From what I understood, the net/http library doesn't have any encoding specific options and the stuff that comes in is basically not properly tagged. What would be the best way to actually work with that incoming data? I tried .encode with the replace and invalid options set, but no success so far...

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