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• Visual C++/CLI "An unhandled exception of type 'System.StackOverflowException' occurred in"

  - by JennyWong

  Hi, I have a game I am making, it is giving me this message... "An unhandled exception of type 'System.StackOverflowException' occurred in game.exe" To explain...I have a 2D array with 9 different opening moves and I am getting a random number to use as the array reference to retrieve the details needed for a move... you may get the same move again - but that's illegal. the move may be illegal for other reasons too So to try and fix this, I am calling the function again from within the function. The error occurs very randomly Is this bad practise to call a function from within itself? What would be a better way to randomly row from a 2D array, AND if it isn't accept to get another one.... Or better still, how can I retrieve a random LEGAL move?

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• python unit testing os.remove fails file system

  - by hwjp

  Am doing a bit of unit testing on a function which attempts to open a new file, but should fail if the file already exists. when the function runs sucessfully, the new file is created, so i want to delete it after every test run, but it doesn't seem to be working: class MyObject_Initialisation(unittest.TestCase): def setUp(self): if os.path.exists(TEMPORARY_FILE_NAME): try: os.remove(TEMPORARY_FILE_NAME) except WindowsError: #TODO: can't figure out how to fix this... #time.sleep(3) #self.setUp() #this just loops forever pass def tearDown(self): self.setUp() any thoughts? The Windows Error thrown seems to suggest the file is in use... could it be that the tests are run in parallel threads? I've read elsewhere that it's 'bad practice' to use the filesystem in unit testing, but really? Surely there's a way around this that doesn't invole dummying the filesystem?

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• Android Samsung S2 spannablestringbuilder error

  - by Bilal Akmal

  I'm working on an app which fetches data from server using JSON. It is working fine in emulator but in my phone, it is giving error and not getting data. The error comes at this point in JSON Parser.... HttpPost httpPost = new HttpPost(url); httpPost.setEntity(new UrlEncodedFormEntity(params)); HttpResponse httpResponse = httpClient.execute(httpPost);//Error Point httpEntity = httpResponse.getEntity(); On the third line logcat shows.... SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length I have searched a lot but it doesn't help me.

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• simple modification results in error

  - by lgwest

  When I tried to do a simple modification of the "hello android" program that eclipse adt plugin generates I get error and can't get the program to run again even if I restore the file to its original contents. The modification was that I changed a string in strings.xml. the line was: <string name="app_name">Todo List</string> and the app was runnable, then I changed it to <string name="app_name">Todo List1</string> and it was an error: [2010-04-21 23:18:03 - Todo_list] Error in an XML file: aborting build. And a new empty file also showed up called: strings.out.xml And then I can't get the prrogram back into runnable state even if I delete the empyt file and restore the original line, I'm a confused beginner of java, android and eclipse.

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• Visual Studio 2010 compilation general error c1010070

  - by user1747455

  I wrote a little "hello world" program to test my computer, but when i sompile the program there's an error: ------ Build started: Project: hi, Configuration: Debug Win32 ------ Build started 15/10/2012 22:36:48. InitializeBuildStatus: Touching "Debug\hi.unsuccessfulbuild". Link: hi.vcxproj - D:\MSVS\hi\Debug\hi.exe Manifest: Debug\hi.exe.intermediate.manifest : general error c1010070: Failed to load and parse the manifest. {q~ 0H Build FAILED. Time Elapsed 00:00:02.34 ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ========== the creepiest thing i think would be that line of "OH"... i wonder if there's any way to solve this...please help. Many thanks. edit: i tried changing the character set into "multi-byte" and turning "embed manifest"(from "manifest tools") off, but it still cant solve the error

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• Java program runtime error

  - by Sam

  public class BooksTestDrive { public static void main(String[] args) { Books [] myBooks = new Books[3]; int x=0; myBooks[0].title = "The Grapes of Jave"; myBooks[1].title = "The Java Gatsby"; myBooks[2].title = "The Java Cookbook"; myBooks[0].author = "bob"; myBooks[1].author = "sue"; myBooks[2].author = "ian"; while (x < 3) { System.out.print(myBooks[x].title); System.out.print("by"); System.out.println(myBooks[x].author); x = x+1; } } } This code compiles but while runtime, its giving nullpointer exception.

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• LINQ to Entites: How should I handle System.InvalidOperationException when checking for existance of

  - by chris

  I have a many-to-one relationship that users can edit via checkboxes. PK of Foo is ID, and fid contains the id from the checkbox. I'm checking to see if an element exists with: Foo ent; try { ent = ctx.Foo.First(f => f.ID == fid); } catch (System.InvalidOperationException ioe) { ent = new Foo(); } It seems to me that I should be able to do this without throwing an exception. What would be the best way to do this?

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• ASP.NET/VB/SQL: trying to insert data, getting error "no value given for required parameters"

  - by Sara

  I am pretty sure this is a basic syntax error, I am new at this and basically figuring things out by trial and error... I am trying to insert data from textboxes into an Access database, where the primary key fields in tableCourse are prefix and course_number. It keeps giving me the "no value given for one or more required parameters" error. Here is my codebehind: Protected Sub Wizard1_FinishButtonClick(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.WizardNavigationEventArgs) Handles Wizard1.FinishButtonClick 'Collect Data Dim myDept = txtDept.Text Dim myFirst = txtFirstName.Text Dim myLast = txtLastName.Text Dim myPrefix = txtCoursePrefix.Text Dim myNum = txtCourseNum.Text 'Define Connection Dim myConn As New OleDbConnection myConn.ConnectionString = AccessDataSource1.ConnectionString 'Create commands Dim myIns1 As New OleDbCommand("INSERT INTO tableCourse (department, name_first, name_last, prefix, course_number) VALUES (@myDept, @myFirst, @myLast, @myPrefix, @myNum)", myConn) 'Execute the commands myConn.Open() myIns1.ExecuteNonQuery() End Sub

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• Event is causing an error, but I can't catch the exception

  - by proudgeekdad

  A developer has created a custom control in ASP.NET using VB.NET. The custom control uses a repeater. In certain scenarios, the rpt_ItemDataBound event is encountering a data error. My goal is rather than having the user see the yellow screen of death, give the user a friendlier error explaining exactly what the data error is. I figured I would be able to use a Try/Catch block as shown below throw the exception, however, it appears that the event has nowhere to be thrown to and stops executing at the "End Try" line. Protected Sub rpt_ItemDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.RepeaterItemEventArgs) Handles rpt1.ItemDataBound, rpt2.ItemDataBound Try ProcessBadData... Catch ex As Exception Throw ex End Try End Sub In VB.NET, I can find where the repeater's DataSource is being set, however, I can not find a DataBind event. Any ideas how I can capture the exception in this ASCX control so I can report it to the user?

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• error C2065: 'AfxBeginThread' : undeclared identifier

  - by bdhar

  I have a simple ATL Service in which I have included the following statement. AfxBeginThread(WorkerThread, this, THREAD_PRIORITY_NORMAL, 0, 0); But the compiler complains that error C2065: 'AfxBeginThread' : undeclared identifier But in MSDN i found that AfxBeginThread is found in AFXWIN.H If I include AFXWIN.H, the compiler complains that fatal error C1189: #error : WINDOWS.H already included. MFC apps must not #include <windows.h> What am I missing here? Thanks. PS: I am using Visual Studio 6.0 Enterprise Edition in Windows XP SP2.

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• g_signal_connect error invalid use of member

  - by paultop6

  Hi Guys, More GTK questions, im trying to compile some code and im getting the following error: error: invalid use of member (did you forget the ‘&’ ?) This is comming from the g_signal_connect call: g_signal_connect ((gpointer) Drawing_Area_CPU, "expose-event", G_CALLBACK (graph_expose), NULL); Drawing_Area_CPU is a GtkWidget* and graph_expose is defined as: gboolean graph_expose(GtkWidget *widget, GdkEventExpose *event, gpointer data); So far as i can tell im doing everything right, but still i get this error. Can anyone help please? Regards Paul

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• Postgresql error: could not open segment 1 of relation base/20983/2416

  - by kokonut

  I'm running a Postgresql query and getting the following error: ActiveRecord::StatementInvalid (PGError: ERROR: could not open segment 1 of relation base/20983/24161 (target block 5046584): No such file or directory The query is of the format 'SELECT "locations".* FROM "locations" WHERE ("locations"."id" IN (115990, 78330, 77891, 78248, ...)' with about 600 ids in the IN clause - not an optimal query I know but it's what I have to work with for the moment! The server is running PostgreSQL 8.4.6 on x86_64-pc-linux-gnu, compiled by GCC gcc-4.4.real (Ubuntu 4.4.1-4ubuntu9) 4.4.1, 64-bit. Postgis 1.5 is also installed, and the locations table contains a geometry column. Anyone have any idea what could be causing the error? Thanks!

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• 42000 Syntax error in query when executing prepared statement

  - by Griff McGriff

  I have been pulling my hair out trying to swap my current script over to PDO. I have simplified the MySQL query for this example, but the error remains even with this version. $sql = 'SELECT * FROM :table WHERE lastUpdate > :appDate'; try{ $db = connect(); $stmt = $db->prepare($sql); $stmt->bindParam(':table', $table); $stmt->bindParam(':appDate', $appDate); foreach($tablesToCheck as $table){ $stmt->execute(); $resultset[] = $stmt->fetchAll(); } } catch(PDOException $e){ print 'Error!: '.$e->getMessage().'<br/>'; }//End try catch $stmt-errorInfo() returns: ( [0] => 42000 [1] => 1064 [2] => You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''GroupName' WHERE lastUpdate > NULL' at line 1 )

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• ASP.NET page parser error and Compilation ERROR and HALF INLINE CODING and HALF CODE BEHIND FILE

  - by dnlearner

  Frequently i came accross a problem that is Page parse error.... to get out of this hell i used to remove inherit attribute in Page Directive. After that it is showing compliation error??? How to solve it ???? what i have to do for the page compilation problem and page parser error tooo????? And 1 more thing is i had written the code of a button1 click event k after after i had opened that project if i double click on that button i am going to inline coding.. How to solve it..Even though i took 1 button in that button events i doube clicked on a event still there is no use...I am redirecting to inline coding. How to solve the problem of that page. I should redirect to code behind file only

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• Installing OSQA on windows(Local system)

  - by Pankaj Khurana

  Hi I want to install osqa on windows local system for this i have downloaded bitnami-djangostack-1.1.1-2-windows-installer.exe which has in built django,python,mysql & apache. I have run a django example given on the django website. Its working fine. But i am confused how to install osqa. I have downloaded the source code available on osqa site and readed the installation instruction(requires django 1.1.1). But how to make it working? Please help me on this Thanks

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• Combining the value of GetLastError and a custom error message

  - by Jessica

  I have a function that returns a different DWORD value for each case there is an error. So I have the following defines: #define ERR_NO_DB_CONNECTION 0x90000 #define ERR_DB_NOT_OPEN 0x90001 #define ERR_DB_LOCKED 0x90002 #define ERR_DB_CONN_LOST 0x90003 Now, I return those values when an error occurs. I need to also return the value of GetLastError in the same return. No, I can't read it later. I tried combining it different ways, eg: return ERR_DB_NOT_OPEN + GetLastError(); and then extract the error by subtracting the value of ERR_DB_NOT_OPEN but since I need to use this in functions where there can be several return values it can get quite complex to do that. Is there any way to achieve this? I mean, combine the value + GetLastError and extract them later? Code is appreciated. Thanks Jess.

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• System.NullReferenceException with WhoCanHelpMe Unit Test

  - by tlum

  I'm working with a test project based on WhoCanHelpMe, which is based on Sharp Architecture, NHibernateValidator, etc. As its written the when_the_profile_tasks_is_asked_to_create_a_profile unit test creates the profile object and saves it without issue. Now the profile object is a CreateProfileDetails type that derives from their own ValidatableValueObject which inherits the IValidatable interface. The problem surfaces when my class is based on an Entity rather than their ValidatableValueObject. When the test is run a System.NullReferenceException because Validate() is null. I'm afraid that I'm at a loss to resolve this bad behavior. Does anyone have some suggestions to get to the bottom of this? Thanks, -Ted-

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• What causes Python "Interpreter not Initialized" error?

  - by ?????

  I'm now on my third full day this week of trying to get OpenCV to work with Python. (I have been trying on and off for the past 6 months). I get this error Python 2.7.1 (r271:86882M, Nov 30 2010, 10:35:34) [GCC 4.2.1 (Apple Inc. build 5664)] on darwin Type "help", "copyright", "credits" or "license" for more information. dlopen("/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload/readline.so", 2); import readline # dynamically loaded from /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload/readline.so >>> import cv dlopen("./cv.so", 2); Fatal Python error: Interpreter not initialized (version mismatch?) and then it crashes (core dumps). python -v gives nothing after the dlopen. Any ideas from anyone who actually knows about this error?

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• Fatal error: Call to undefined function mysqli_connect()

  - by Jack

  I have installed WAMP. I am using Tomcat 6 to run my PHP scripts. I am also using JavaBridge.war and I have copied my php scripts into \webapp\JavaBridge\project. I have removed the semicolon from php.ini file before the statements extension=php_mysqli.dll extension=php_mysql.dll I have added C:\wamp\bin into my PATH env variable. I have copied all dll's from C:\wamp\bin\php\php5.3.0\ext into C:\windows\system32 I am still getting this error. Fatal error: Call to undefined function mysqli_connect() in C:\Program Files\apache-tomcat-6.0.26\webapps\JavaBridge\project\pf_query.php on line 534 Note - I dont get this error when I run my PHP script from Apache 2.2.11 of the WAMP package.

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• Freeing a character pointer returns error

  - by Kraffs

  I'm trying to free a character pointer after having used it but it returns a strange error. The error says: "_CrtDbgREport: String too long or IO Error" The debugger itself returns no errors while compiling. The code currently looks like this: void RespondToUser(SOCKET client, SOCKET server) { char buffer[80]; char *temp = malloc(_scprintf("HTTP/1.1 200 OK\r\n%s\r\nServer: %s\r\nConnection: close\r\n\r\nHi!", buffer, SERVER_NAME)); sprintf(temp, "HTTP/1.1 200 OK\r\n%s\r\nServer: %s\r\nConnection: close\r\n\r\nHi!", buffer, SERVER_NAME); send(client, temp, strlen(temp), 0); closesocket(client); free(temp); ListenToUsers(server); } The problem only occurs when I try to free the temp pointer from the memory and not otherwise. What might be causing this?

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• Excel worksheet error

  - by developer

  Hi, I am trying to create dynamic excel sheet, with the help of php using XML Spreadsheet. But when I try to open the dynamically created excel sheet I keep on getting error that says 'Unable to load worksheet, problem with worksheet settings'. When I try to look at the log file it had created it shows the below text, XML ERROR in Worksheet Setting REASON: Bad Value FILE: C:\Documents and Settings\UserName\Local Settings\Temporary Internet Files\Content.IE5\5XZ039FS\output[3].xls GROUP: Worksheet TAG: Table ATTRIB: ExpandedRowCount VALUE: 4 Can anybody tell what does the above error mean and how do I remove it?

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• pass custom environment variables to System.Diagnostics.Process

  - by Mike Ruhlin

  I'm working on an app that invokes external processes like so: ProcessStartInfo startInfo = new ProcessStartInfo(PathToExecutable, Arguments){ ErrorDialog = false, RedirectStandardError = true, RedirectStandardOutput = true, UseShellExecute = false, CreateNoWindow = true, WorkingDirectory = WorkingDirectory }; using (Process process = new Process()) { process.StartInfo = startInfo; process.Start(); process.BeginErrorReadLine(); process.BeginOutputReadLine(); process.WaitForExit(); return process.ExitCode; } One of the processes I'm calling depends on an environment variable that I'd rather not require my users to set. Is there any way to modify the environment variables that get sent to the external process? Ideally I'd be able to make them visible only to the process that's running, but if I have to programmatically set them system-wide, I'll settle for that (but, would UAC force me to run as administrator to do that?) ProcessStartInfo.EnvironmentVariables is read only, so a lot of help that is...

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• password/login system in php

  - by Jonathan

  For a login system in php would this be a suitable outline of how it would work: users types in username and password, clicks login button. Checks if user exists in database, if it does, then retrieve the salt for that user hash the password and salt (would this be done on the client or server side? I think client side would be better, but php is server side so how would you do this?) check value against value in database, if the values match then user has typed in correct password and they are logged in.

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• Error handling in controllers with MVC

  - by twrn

  Does it make sense to do error handling and logging inside actions methods or handle the OnException method inside the controllers. One way means writing try/catches in all the action methods even when there is nothing to be done to recover from the error. Handling this at the controller level would allow logging and redirection to an error handler page without writing try/catches inside all the action methods. Which method makes the most sense? Here is example code of try/catches in an action method. [HttpPost] public ActionResult Delete(int id) { using (new Tracer("Project Controller")) { try { Logger.Write("Deleting project"); projService.DeleteProject(id); TempData["message"] = "Project Deleted successfully"; } catch (System.Exception ex) { HandleException(ex, "Project could not be deleted."); } return RedirectToAction("List"); } }

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• "Make" system for Actionscript?

  - by Ender

  In working on larger Actionscript/Flash projects, I've started to really feel the need for some kind of "make" system, but I haven't found it yet. Does anyone know if it exists? Required features: Ability to associate SWCs with their source code and/or FLAs i.e. "this swc is compiled from this source" Ability to mark my current project as depending on these SWCs (either as compile-time or runtime libraries) A single, big shiny button, that when pressed does the following: Checks to see if any of the source files have changed, and if so, recompiles their associated SWCs Recompiles and relinks the main .swf, if necessary Runs the main .swf Have yet to find a way to get something like FlashDevelop to do this (but I don't know it well enough to be sure). Support for both code and FLA sources is preferred.

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