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• Xcode: Unable to open project... cannot be opened because the project file cannot be parsed...

  - by Chris Butler

  Hi everyone. I have been working for a while to create an iPhone app. Today when my battery was low, I was working and constantly saving my source files then the power went out... Now when I plugged my computer back in and it is getting good power I try to open my project file and I get an error: "Unable to Open Project Project ... cannot be opened because the project file cannot be parsed." Is there a way that people know of that I can recover from this? I tried using an older project file and re inserting it and then compiling. It gives me a funky error which is probably because it isn't finding all the files it wants... I really don't want to rebuild my project from scratch if possible. Thanks in advance. EDIT Ok, I did a diff between this and a slightly older project file that worked and saw that there was some corruption in the file. After merging them (the good and newest parts) it is now working. Great points about the SVN. I have one, but there has been some funkiness trying to sync XCode with it. I'll definitely spend more time with it now... ;-) Thanks for everyone's comments and suggestions.

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• VS2010 Beta 2 > Setup Project > Prerequisites > Missing .NET 3.0

  - by Adam Kane

  Hello, In Visual Studio 2010 Beta 2, in a Setup project, in Prerequisites, there's no option to include the .NET Framework 3.0 prerequisite. How do I change things so that it is an available option? My goal is to create an .msi installer that is launched by a Setup.exe. The Setup.exe should install .NET 3.0 if it's not there. The application that I'm installing uses .NET 3.0 Note: I've tried clicking the "Check Microsoft Update for more redistributable components", but .NET 3.0 wasn't there. Thanks! Adam

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• Problem virtualizing Ubuntu 10.04 32 bit on VirtualBox 3.1 on Windows Vista 64 bit

  - by Adam Siddhi

  Software & Hardware Setup Host System : Windows Vista Home Premium SP1 64 bit Guest : Ubuntu 10.04 (ubuntu-10.04-desktop-i386.iso) 32 bit VM : VirtualBox 3.1.8 Hardware : Intel Core 2 Duo T6400 4GB SDRAM What Happened I followed the tutorial called Installing Ubuntu inside Windows using VirtualBox located here: www.psychocats.net/ubuntu/virtualbox At first I downloaded ubuntu-10.04-desktop-amd64.iso because I figured that it would be a perfect fit with my Vista 64 OS. I was wrong because it turns out the my Intel Core 2 Duo T6400 CPU does not have Intel® Virtualization Technology. So I had to go with the ubuntu-10.04-desktop-i386.iso which is 32 bit. This got me to the point where I could actually create the Ubuntu VM. So I set up the VM in VirtualBox (according to the tutorial I was following) to prepare for the Ubuntu 10.04 virtualization. Please go to my Picassa web album to see the screen shots of my VM settings and Ubuntu boot process so you can see what I experienced (they appear in the order that I experienced them in). www.picasaweb.google.com/rubysiddhi/ProblemVirtualizingUbuntu100432BitOnVirtualBox31OnWindowsVista64# The first 17 images show the VM settings. The last 8 show my attempt at virtualizing Ubuntu 10.04. You can see booting up but ultimately failing. The Specifics The one error message I got was: (process:210): GLib-WARNING **: getpwuid_r(): failed due to unknown user id (0) It appeared on a black screen that sort of looked like a Windows console screen but with out the c:\ or the ability to type. Then this error message got more complex when tons of text appeared in the screen. Pictures 23 - 25 in the album show this text. I should also mention that I found this post in the Ubuntu forums by zonination who seemed to have similar problems to mine even though they had a different set up. The main issue I think zonination and me may be having is the fact that we can not change the color mode to 32 bit while it is booting. I think the 16 bit color mode maybe making Ubuntu fail. Not certain though. Well I hope I explained my problem thoroughly and clearly. Thanks for the tutorial. It got me started but, now I hope to finish this process so I can start developing in Ubuntu. OH by the way if you want to actually see what happened play by play (with some classical in the background) check out the video I made over here: http://www.youtube.com/watch?v=XMbbm5E_0Xw Thanks! Regards, Adam

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• iPhone hitTest broken after rotation

  - by Adam

  Hi all, I have a UIView that contains a number of CALayer subclasses. I am using the following code to detect which layer a touch event corresponds to: - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = [touches anyObject]; CGPoint touchPoint = [touch locationInView:self]; NSLog(@"%@,%@",NSStringFromCGPoint(point),[self.layer hitTest:point].name); } This works fine until the device is rotated. When the device is rotated all current layers are removed from the superlayer, and new CALayers are created to fit the new orientation. The new layers are correctly inserted and viewable in the correct orientation. After the rotation the hitTest method consistently returns nil when clearly clicking on the newly created layers and registers for locations of layers which are incorrect. The coordinates of the hit test are correct, but no layers are found. Am I missing a function call or something after handling the rotation? Cheers, Adam

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• How to convert latitude or longitude to meters?

  - by Adam Taylor

  Hi, If I have a latitude or longitude reading in standard NMEA format is there an easy way / forumla to convert that reading to meters, which I can then implement in Java (J9)? Edit: Ok seems what I want to do is not possible /easily/, however what I really want to do is: Say I have a lat and long of a way point and a lat and long of a user is there an easy way to compare them to decide when to tell the user they are within a /reasonably/ close distance of the way point? I realise reasonable is subject but is this easily do-able or still overly maths-y? Thanks, Adam

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• Sound Effects/Manipulation?

  - by Adam

  Hello, I am creating an android app that basically records an applies an "Effect" on the audio track then plays it back. I got my app to record an play back but I am stuck an not sure where do go from here. I have been Googling for days now trying to find a open source audio library or some way to change the audio after I record it. I currently have it setup to play back using SoundPool an I't lets me speed up an slow down the audio. I would like to do things like change pitch an add echo etc. I will appreciate any responses because I am totally stumped right now. Thanks Adam

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• Sell digital goods online

  - by Adam

  What's the best solution for a photographer wanting to sell image files online? I tried zencart, but it's way over the top and their backend looks like a 3 year old designed it. Is there a free solution out there? One that has easily modifiable templates and isn't too tedious to add hundreds of pictures for sale? I'm seriously thinking learning how to do it myself with the whole paypal IPN thing might be the way to go.. Suggestions is greatly appreciated! Adam

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• Python: Split by 1 or more occurrences of a delimiter

  - by Adam Matan

  Hi, I have a formatted string from a log file, which looks like: >>> a="test result" That is, the test and the result are split by some spaces - it was probably created using formatted string which gave test some constant spacing. Simple splitting won't do the trick: >>> a.split(" ") ['test', '', '', '', ... '', '', '', '', '', '', '', '', '', '', '', 'result'] split(DELIMITER, COUNT) cleared some unnecessary values: >>> a.split(" ",1) ['test', ' result'] This helped - but of course, I really need: ['test', 'result'] I can use split() followed by map + strip(), but I wondered if there is a more Pythonic way to do it. Thanks, Adam

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• How do I set a matplotlib colorbar extents?

  - by Adam Fraser

  I'd like to display a colorbar representing an image's raw values along side a matplotlib imshow subplot which displays that image, normalized. I've been able to draw the image and a colorbar successfully like this, but the colorbar min and max values represent the normalized (0,1) image instead of the raw (0,99) image. f = plt.figure() # create toy image im = np.ones((100,100)) for x in range(100): im[x] = x # create imshow subplot ax = f.add_subplot(111) result = ax.imshow(im / im.max()) # Create the colorbar axc, kw = matplotlib.colorbar.make_axes(ax) cb = matplotlib.colorbar.Colorbar(axc, result) # Set the colorbar result.colorbar = cb If someone has a better mastery of the colorbar API, I'd love to hear from you. Thanks! Adam

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• How to make Linux reliably boot on multi-cpu machines?

  - by Adam Tabi

  I've got two machines, one with 4x12 AMD Opteron cores (AMD Opteron(tm) Processor 6176), one with 2x8 Xeon cores (HT disabled; Intel(R) Xeon(R) CPU E5-2660 0 @ 2.20GHz). On both machines I experience difficulties during boot of Linux using recent kernels. The system hangs during the initialization of the kernel, before or just when initramfs started initializing the hardware. The last thing which got displayed was a stacktrace like this: CPU: 31 PID: 0 Comm: swapper/31 Tainted: G D 3.11.6-hardened #11 Hardware name: Supermicro X9DRT-HF+/X9DRT-HF+, BIOS 3.00 07/08/2013 task: ffff880854695500 ti: ffff880854695a28 task.ti: ffff880854695a28 RIP: 0010:[<ffffffff8100a82e>] [<ffffffff8100a82e>] default_idle+0x6/0xe RSP: 0000:ffff8808546b3ec8 EFLAGS: 00000286 RAX: ffffffff8100a828 RBX: ffff880854695a28 RCX: 00000000ffffffff RDX: 0100000000000000 RSI: 0000000000000000 RDI: ffff88107fdec690 RBP: ffff8808546b3ec8 R08: 0000000000000000 R09: ffff880854695500 R10: ffff880854695500 R11: 0000000000000001 R12: ffff880854695a28 R13: ffff880854695a28 R14: ffff880854695a28 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88107fde0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000002b43256a960 CR3: 00000000016b5000 CR4: 00000000000607f0 Stack: ffff8808546b3ed8 ffffffff8100aec9 ffff8808546b3f10 ffffffff8109ce25 334ab55852ec7aef 000000000000001f ffffffff8102d6c0 0000000000000000 0000000000000000 ffff8808546b3f48 ffffffff810276e0 ffff8808546b3f28 Call Trace: [<ffffffff8100aec9>] arch_cpu_idle+0x20/0x2b [<ffffffff8109ce25>] cpu_startup_entry+0xed/0x138 [<ffffffff8102d6c0>] ? flat_init_apic_ldr+0x80/0x80 [<ffffffff810276e0>] start_secondary+0x2c9/0x2f8 I compiled the kernel myself and it works fine, if I boot with nolapic. Yet, only one core is used. Also, the kernel of RHEL6 seems to work fine. I suspect that there are some patches used to make things work. Using the kernel config file from RHEL6 and building a more recent kernel yields the same problems. On the Xeon machine, things got better by disabling Hyperthreading completely. The machine now boots successfully on at least 4 out of 5 times. And if it boots, multicore stuff works just fine. However, I'm wondering about what to do about the AMD machine. So to sum it up: Gentoo kernel 3.6 - 3.11 won't reliably boot those machines unless you reduce the amount of cores (e.g. via nolapic). RHEL6 kernel (which is 2.6.32) boots just fine. RH kernel config used to build a 3.x kernel won't yield a working kernel. Not distribution specific (apart from the kernel being used). These stack traces got printed every minute or so. The kernel seems to be stuck in an endless loop. Yet, a recent kernel is needed for various reasons. So the question is: What does the RHEL6 kernel do, what vanilla or gentoo kernels don't do? Is there a boot option that might lead to a reliable boot with all the cores enabled? Best, Adam

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• Python: Why is IDLE so slow?

  - by Adam Matan

  Hi, IDLE is my favorite Python editor. It offers very nice and intuitive Python shell which is extremely useful for unit-testing and debugging, and a neat debugger. However, code executed under IDLE is insanely slow. By insanely I mean 3 orders of magnitude slow: bash time echo "for i in range(10000): print 'x'," | python Takes 0.052s, IDLE import datetime start=datetime.datetime.now() for i in range(10000): print 'x', end=datetime.datetime.now() print end-start Takes: >>> 0:01:44.853951 Which is roughly 2,000 times slower. Any thoughts, or ideas how to improve this? I guess it has something to do with the debugger in the background, but I'm not really sure. Adam

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• How can I hide a database column in the entity model?

  - by Nick Butler

  Hi. I'm using the Entity Framework 4 and have a question: I have a password column in my database that I want to manage using custom SQL. So I don't want the model to know anything about it. I've tried deleting the property in the Mapping Details window, but then I got a compilation error: Error 3023: Problem in mapping fragments starting at line 1660:Column User.Password in table User must be mapped: It has no default value and is not nullable. So, I made the column nullable in the database and updated the model. Now I get this error: Error 3004: Problem in mapping fragments starting at line 1660:No mapping specified for properties User.Password, User.Salt in Set Users. An Entity with Key (PK) will not round-trip when: Entity is type [UserDirectoryModel.User] Any ideas please? Thanks, Nick

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• [C#] Own component with panel

  - by Adam

  Hi, I want to create my own component which consists two other panels. One of them has fixed contents (such as control buttons, etc.) and the other is standard panel, where I can add other components in designer (VS2008). I know that I have to create UserControl, where I can place my two panels. Then I want to insert my component into the form. But I don't know how to create behavior where I can add other components (such as buttons, labels, etc.) only into second panel in my component. Could anyone help me with creating this component? Thank you. Adam.

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• Python: Filter a dictionary

  - by Adam Matan

  Hi, I have a dictionary of points, say: >>> points={'a':(3,4), 'b':(1,2), 'c':(5,5), 'd':(3,3)} I want to create a new dictionary with all the points whose x and y value is smaller than 5, i.e. points 'a', 'b' and 'd'. According to the the book, each dictionary has the items() function, which returns a list of (key, pair) tuple: >>> points.items() [('a', (3, 4)), ('c', (5, 5)), ('b', (1, 2)), ('d', (3, 3))] So I have written this: >>> for item in [i for i in points.items() if i[1][0]<5 and i[1][1]<5]: ... points_small[item[0]]=item[1] ... >>> points_small {'a': (3, 4), 'b': (1, 2), 'd': (3, 3)} Is there a more elegant way? I was expecting Python to have some super-awesome dictionary.filter(f) function... Adam

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• C# MySQL Lost Connection

  - by Adam

  Hi. I have C# application and I'm using MySQL database. Everything seems to be fine except one thing. Our computer network is little bit unstable. When I'm trying to execute query and the computer simultaneously loses connection to the mysql server (I'm simulating this situation by unplugging the network cable from computer which is mysql server), the program is trying to do something for long time (tens seconds). I would like to specify something like timeout which ends the query by exception or something similar. I tried to add timeout parameters to connection string but with no effect (I've used ConnectionTimeout and DefaultCommandTimeout). Is there any other way to identify lost connection after few seconds? Thank you Adam P.S. Sorry for my english, I'm not native speaker.

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• Parsing prototype AJAX.response XML in IE

  - by adam

  Hi I have an xml webservice which I'm fetching using PrototypeJS. The xml has the correct content type and is well-formed, and looks like this: <GetTokenResponse xmlns="http://tempuri.org/"> <GetTokenResult>F655100D64F098F0AC33AFF414A4A0D5</GetTokenResult> </GetTokenResponse> The AJAX request is completing successfully, and I can access the GetTokenResult node in both IE and FF but can only get the text content of the node in FF. My code is below: node = transport.responseXML.documentElement.getElementsByTagName('GetTokenResult')[0]; rawToken = (document.all) ? node.innerText : node.textContent; I've tried innerText and innerHTML, as well as children[0] and a few other chance guesses but IE returns 'undefined' when I access rawToken. Anyone able to lend a hand? Thanks, Adam

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• Dojo dialog, the iPad and the virtual keyboard issue

  - by Chris Butler

  Recently, I have been working on a project where the interface should work for desktop and tablets (in particular the iPad). One issue I am coming across is with a Dojo dialog on the iPad when text entry is taking place. Basically here is what happens: Load Dojo interface with buttons on iPad - OK Press button (touch) to show dialog (90% height and width) - OK Click on text box (touch) like DateTextBox or TimeTextBox - OK, the virtual keyboard is opened Click the date or time I want in the UI (touch) - OK, but I can't see all of the options since it is longer than the screen size... Try to scroll down (swipe up with two fingers or click 'next' in the keyboard) - not OK and the dialog repositions itself to have it's top at the top of the viewport area. Basically, the issue is that the dialog keeps trying to reposition itself. Am I able to stop dialog resizing and positioning if I catch the window onResize events? Does anyone else have this issue with the iPad and Dojo dialogs? Also, I found this StackOverflow topic on detecting the virtual keyboard, but it wasn't much help in this case... http://stackoverflow.com/questions/2593139/ipad-web-app-detect-virtual-keyboard-using-javascript-in-safari Thanks!

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• sIFR in Javascript news rotator?

  - by Adam Brown

  Hi everyone, I'm using sIFR on a website that is database driven and it works great. However, I have a news rotator on the home page and sIFR won't replace the text on the tile below the rotating image, so I have to create images for this each time. Example of the site is http://www.aucklandcityfc.com. Put home.asp on the end of the URL to see what it looks like trying to run sIFR by default. What I'd like to be able to do is use sIFR to replace that text as well, and then other people can add stories through the CMS. Alternatively, if there's a better rotator (or possibly a Flash application) that anyone knows of, please let me know. Thanks, Adam

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• How do I determine which C/C++ compiler to use?

  - by Adam Siddhi

  Greetings, I am trying to figure out which C/C++ compiler to use. I found this list of C/C++ compilers at Wikipedia: http://en.wikipedia.org/wiki/List_of_compilers#C.2FC.2B.2B_compilers I am fairly certain that I want to go with an open source compiler. I feel that if it is open source then it will be a more complete compiler since many programmer perspectives are used to make it better. Please tell me if you disagree. I should mention that I plan on learning C/C++ mainly to program 2D/3D game applications that will be compatible with Windows, Linux, MAC and iPhone operating systems. I am currently using Windows Vista x64 OS. Thanks, Adam

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• Have a reloadData for a UITableView animate when changing

  - by Chris Butler

  Hi everyone. I have a UITableView that has two modes. When we switch between the modes I have a different number of sections and cells per section. Ideally, it would do some cool animation when the table grows or shrinks. Here is the code I tried, but it doesn't do anything: CGContextRef context = UIGraphicsGetCurrentContext(); [UIView beginAnimations:nil context:context]; [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut]; [UIView setAnimationDuration:0.5]; [self.tableView reloadData]; [UIView commitAnimations]; Any thoughts on how I could do this? Thanks in advance.

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• What does the "build-essential" & "build-dep" Terminal commands mean & do in Linux based operating s

  - by Adam Siddhi

  Hi. I am researching how to install Ruby 1.9.1 in Xubuntu 10.04 and I came across the command build-essential and build-dep multiple times. Sometimes it is followed by packages and sometimes it is both preceded and post-ceded by packages. The 2 examples I am looking at are: sudo apt-get install build-essential zlib1g zlib1g-dev zlibc libruby1.9 libxml2 libxml2-dev libxslt-dev sudo apt-get build-dep ruby1.9 and sudo apt-get install ruby irb ri rdoc ruby1.8-dev libzlib-ruby libyaml-ruby libreadline-ruby libncurses-ruby libcurses-ruby libruby libruby-extras libfcgi-ruby1.8 build-essential libopenssl-ruby libdbm-ruby libdbi-ruby libdbd-sqlite3-ruby sqlite3 libsqlite3-dev libsqlite3-ruby libxml-ruby libxml2-dev Thanks :adam

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• Ruby: change each value in a hash with something like #collect for arrays?

  - by Adam Nonymous

  Hi! I'd like to replace each value in a hash with value.some_method. For example in a simple hash {"a" = "b", "c" = "d"} every value should be .upcase-d so it looks like {"a" = "B", "c" = "D"}. I tried #collect and #map but always just get arrays back. Is there an 'elegant' way to do this? Thanks in advance, Adam Nonymous UPDATE: Damn, I forgot: The hash is in an instance variable which should not be changed. I need a new hash with the changed values, but would prefer not to define that variable explicitly and then loop over the hash filling it. Something like new_hash = hash.magic {...} ;)

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• WebBrowser control not navigating to links to "file://" protocol URIs

  - by Nick Butler

  I am setting the DocumentText property to an HTML string that contains links like: <a href="file:///D:/dir/file.html">NewPage</a> The links are shown properly in the WebBrowser, but nothing happens when I click them. The Navigating, Navigated and DocumentComplete events do not fire - nothing seems to happen at all. AllowNavigation is true and other links using HTTP are working. Any ideas please? Nick

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• Encrypt text using a number

  - by Adam Matan

  Project Euler I have recently begun to solve some of the Project Euler riddles. I found the discussion forum in the site a bit frustrating (most of the discussions are closed and poorly-threaded), So I have decided to publish my Python solutions on launchpad for discussion. The problem is that it seems quite unethical to publish these solutions, as it would let other people gain reputation without doing the programming work, which the site deeply discourages. My Encryption problem I want to encrypt my answers so that only those who have already solved the riddles can see my code. The logical key would be the answer to the riddle, which is always numeric. In order to prevent brute-force attacks on my answers, I want to find an encryption algorithm that takes a significantly long time (few seconds) to run. Do you know any such algorithm? I would fancy a Python package, which I can attach to the code, over an external program that might have portability issues. Thanks, Adam

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• BeautifulSoup: Get the contents of a specific table

  - by Adam Matan

  Hi, My local airport disgracefully blocks users without IE, and looks awful. I want to write a Python scripts that would get the contents of the Arrival and Departures pages every few minutes, and show them in a more readable manner. My tools of choice are mechanize for cheating the site to believe I use IE, and BeautifulSoup for parsing page to get the flights data table. Quite honestly, I got lost in the BeautifulSoup documentation, and can't understand how to get the table (whose title I know) from the entire document, and how to get a list of rows from that table. Any ideas? Adam

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