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• ruby tests - error messages don't include line numbers or file name

  - by joshs

  Hi all, How do I get line numbers to be reported with my errors when testing. Here is what I get back on a typical error: josh@josh-laptop:~/d/test$ ruby unit/line_test.rb -n test_update Loaded suite unit/line_test Started E Finished in 0.066663 seconds. 1) Error: test_update(LineTest): NameError: undefined local variable or method `sdf' for #<LineTest:0xb6e61304> 1 tests, 0 assertions, 0 failures, 1 errors It is tough to debug without a line number and filename. From the code samples I've seen, people generally get back a more verbose error reports. How do I enable this? Thanks!

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• Setting application affinity in gdb

  - by Marcus Ahlberg

  Is there a simple way of setting the affinity of the application I'm debugging without locking gdb to the same core? The reason why I'm asking is that the application is running with real time priority and it needs to run on a single core. At the moment I use this command line taskset -c 3 gdbserver :1234 ./app.out but the application stops responding and freezes the gdb server, making debugging impossible. I suspect that the real time priority of the application prevents gdb from executing. If I start the application and then start gdb without affinity setting, then I can attach and debug the application without gdb freezing. Is there a simple way to start gdb and the application with different affinities? Or preferably: Is there a gdb command to set affinity of the child process?

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• Print expression as is without evaluating it

  - by Raj

  i want to print the expression Xmin and Ymin as is without calculating the final value . i,e with the values of I and J as 1,2,3,4,5 example when I=1 Xmin= Xmin ((1 - 1)*10 + (1 - 1)*1) is there a way to do it .. I tried the following code, but no luck: int a, g; a = 10; g = 1; for (int J=1; J<=5; J++) { for (int I = 1; I <= 5; I++) { string Xmin = Convert.ToString((I - 1)*a + (I - 1)*g); string Ymin = Convert.ToString((J - 1) * a); Debug.WriteLine("X=" + Xmin + "Y=" + Ymin); } }

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• ADB crashes when device attached with eclipse

  - by user559592

  I am trying to get a development environment setup and having some problems with adb. I have eclipse installed and can create android projects and run/debug them in the emulator. But if I attached my device (HTC Evo) and try running on it, adb crashes. My device shows up so adb sees it. Everything is updated to the latest version. I even went and reinstalled my system so I had a clean start. It would still crash when I connect to the device. I restart adb but it just shuts right back down. Anyone have any suggestions on what I can do to fix this? Running on Windows 7.

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• mig layout - span and grow/push problem

  - by pstanton

  i want 3 components laid out on 2 lines, so that the bottom component and the top-right component use all available horizontal space. JFrame frame = new JFrame(); frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); frame.setLayout(new MigLayout("debug, fill")); Container cp = frame.getContentPane(); cp.add(new JTextField("component 1"), ""); cp.add(new JTextField("component 2"), "growx,push,wrap"); cp.add(new JTextField("component 3"), "span,growx,push"); frame.pack(); frame.setVisible(true); considering the above, how do i stop the space between "component 1" and "component 2" from appearing when resizing the frame? thanks.

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• Use windows 7 inside virtual box,as guest i mean, to create a Windows 7 USB using "Windows 7 USB/DVD Download Tool" ? (Linux as host)

  - by Abel Coto

  I want to download the Windows 7 professional iso (x32), from microsoft, and , i can do two things. Or buy a new burner , as mine doesn't work (i am trying to decide what dvd writer i could buy) or use a usb dongle to copy the iso to it , and install it via usb. I want to install Windows 7 in a netbook that now has debian,and in my pc. I think i have to buy only the license for the pc , as the netbook came with windows 7 preinstalled, so i suppose that i can use that serial to activate the windows , although i don't know how to install windows 7 starter instead of professional (i think if you remove a file from the iso, windows let you choose the edition to install). The problem is that in both pcs there isn't any windows , only debian. My father has a netbook with windows 7 starter, but i think it hasn't antivirus (at least until have the Karspersky Internet security for 3 pcs bought ), and i don't trust to make the usb there , if i don't now that there isn't any virus or malware. So i am trying to find a way of Create a Windows 7 usb installation , to at least be able to install windows 7 in the netbook without a external dvd writer. I know that with dd in linux you can copy a debian.iso to the usb , and then install debian with it (i've done it) using something like dd if=win7.iso of=/dev/sdb, but i don't know if this would work for windows 7 iso,and if dd will correctly copy the iso to the usb. I suppose that if you are able to boot and install windows 7 from the usb , is that the method works,and you can forget of problems later with the windows 7 installation (problems because some files could not be copied or like). So , i remembered that Microsoft created a tool to copy the iso to the usb using windows. So i thought that i could install in my pc , virtual box , as i have VT and 8 GB ram in it, and download the iso from microsoft ,install windows 7 in the virtual machine , and then copy the iso inside the machine , donwload the iso tool, and atach a usb to the pc, connect it to the guest , and use the tool to copy the iso to the USB. But i don't now if is possible to use a virtual machine to do this , or the virtualization could give problems with the usb, or something. I have found some minutes ago this How to make a windows 7 usb flash install media, from linux? The first method (dd) is the one i like more , and i trust more ( i don't now if the second method using ms-sys , works well , and if i can trust it. I understand that a iso is like a .rar , but no compressed,only containing the files ,so mount the iso and cp the data inside perhaps is ok. Although the method i like more is the microsoft one (more because is from microsoft , and i suppose they now what they do ,at least with this usb related thing, than anything). Perhaps worth more to buy a external dvd writer haha ... Should the virtual machine method work ?

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• c# wrapper for a c DLL

  - by Without me Its just Aweso

  I'm attempting to write a wrapper so that my C# application can use a DLL written in C. Here is a method defintion that i'm trying to wrap: void methodA(const uint32_t *data); //c header declaration The issue I'm having is trying to figure out how to give a equivalent pointer from c#. In c# I want it to operate on a: UInt32 data[] //my c# object i want to be able to pass in but how do I give an equivalent pointer in my wrapper? I have tried ref data //my attempt at giving an equivalent pointer to the DLL but that doesnt seem to be working. Using debug statements in the DLL I can see that the values it gets that way are not what I'm attempting to pass in. So my question boils down to have do I properly wrap a c fuction that is using a pointer to reference an array?

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• apache mod_rewrite regex problem with multiple parameter

  - by iko

  Regular expressions have always been my pet peeves. Every time I think that I finally got it I have a new problem ! I want to catch url like this : http://www.mydomain.com/boutique/blabla-1/bla-bla2/99/104 http://www.mydomain.com/boutique/blabla1/99 and eventually : http://www.mydomain.com/boutique/blabla-1/bla-bla2/product1/99/104/55/ after a lot of tries and errors I came up with this which seems to work with http://www.gskinner.com/RegExr/ but not in apache ^.*/boutique/([a-zA-Z-]*)(/?[a-zA-Z-]*)/?([0-9]*)/?([0-9]*)/?$ boutique.php?c1=$3&c2=$4 (I was only working with the first two url so far) MY apache rewrite log debug files are helpless : pass through /Users/iko/Sites/mysite/boutique.php I'm only interrested in getting the ids. Any help we'll be welcomed ! Thank you.

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• printing long compilation lines with MS NMAKE

  - by Elazar Leibovich

  I have a legacy MS NMAKE Makefile I need to fix a few bugs in. There are some very long command lines I wish to debug that are being executed using the NMAKE trick of "inline files": dep: cmd @<<tmpfilename cmd_args.. << When changing the line to dep: echo cmd @<<tmpfilename cmd_args.. << NMAKE complains that the line is too long. Is there any other trick I can apply in order to view the command line NMAKE is actually executing?

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• Memory address of a variable

  - by dotnetvoyager

  Hi Everyone, Is it possible to get the memory address of a variable in C#. What I am trying to do is very simple. I want to declare variables of type Double, Float, Decimal and assign the value 1.1 to each of these variables. Then I would like to go and see how these values are represented in memory. I need to get the memory address of the variable in order to see how its stored in memory. Once I have the memory address I plan to put a break point in the code and use the Debug - Windows - Memory option in visual studio to see how the numbers are stored in memory. Cheers,

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• Unable to connect to sql database only from asp

  - by Brian

  In a VB6 program: Dim conn As Object Set conn = CreateObject("ADODB.Connection") conn.Open "DRIVER={SQL Server}; Server=(local)\aaa; Database=bbb; UID=ccc; PWD=ddd" In an ASP program: Sub ProcessSqlServer(conn) Set conn = Server.CreateObject("ADODB.Connection") conn.Open "DRIVER={SQL Server}; Server=(local)\aaa; Database=bbb; UID=ccc; PWD=ddd" The VB6 program works, the ASP program does not (see error below). I tried checking the event log for errors, but found nothing. Or more precisely, I did find local an activation permission error, but this was fixed once I added local launch/activation permission for Network Service to the Machine Debug Manager via the component services tool. Error: Microsoft OLE DB Provider for ODBC Drivers error '80004005' [Microsoft][ODBC SQL Server Driver]Timeout expired

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• Reference non-GAC version of DLL in Visual Studio 2010

  - by Eric J.

  This is similar to Add Non-GAC reference to project but the solutions presented there don't seem to help. I have a WinForms UI Library (Krypton from ComponentFactory) installed in the GAC. There's a bug I want to track down in that library, so I added the source code to my solution, removed the old references from my WinForms project to Krypton DLLs, added them back as a project references, ensured Copy Local is set to true, double-checked that the path (on reference properties tab) points to my local project, and... ...the GAC version is still being used while debugging. I cannot set a breakpoint in the Krypton source, Debugger.Break() or other code changes to not execute, and when I start the Visual Studio 2010 debugger, I see a Loading from ... GAC_MISL message relating to the Krypton DLLs flash by in the VS 2010 status bar. The DLLs are not copied to the WinForm's Debug folder. How can I reference the "project" version of the files while debugging while leaving them registered in the GAC?

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• My object becomes NSCFArray when running on iPhone

  - by cagreen

  I'm really scratching my head on this one: I have an object (MyObject) which I instantiate, and this object has an NSArray member variable. The following simple code working in the sim: MyObject *myObj = [[MyObject alloc] init]; NSArray *arr = [myObj myMemberArray]; When I hover over myObj in XCode the tooltip reads "MyObject". Good! But when I debug it on the device (OS 3.1.3) I get: "[NSCFArray myMemberArray]: unrecognized selector sent to instance ... " When I hover over myObj, sure enough it reads "NSCFArray". Can anyone give me some pointers on where to go next with this? Thanks.

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• "No architectures" error when compiling objective flickr for iphone device

  - by user176723

  I'm getting the following error when I attempt to compile my XCode project to debug on my device. No architectures to compile for (ARCHS=x86_64, VALID_ARCHS=armv6 armv7). I've included ObjectiveFlickr in my project just as the readme describes. I've gone through the process several times and redownloaded objectiveFlickr a few times to start over. I've gotten objectiveFlickr to work on devices in the past. I don't know why I am suddenly having trouble. Can anybody point me to something that might hold the clue I need? Any other info I need to provide? I made only changes to my project that are specified by the OF documentation. I also get this error when compiling the included snap-n-run example project provided with OF. So I must be missing something beneath my project. Thanks, Charlie

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• I can't get mailto links to open the Mail app from Mobile Safari when using jQTouch. What could be w

  - by Mark B

  Hi all, I'm developing an iPhone web app using jQTouch, and it contains a simple mailto: link to a valid email address, which should launch the iPhone mail application when tapped—but it doesn't. If I visit a "normal" web page in Mobile Safari which contains the exact same link, and tap on it, I get the expected result: the mail app pops up with the correct email address in the To field. Here's the link HTML (with the address changed) just in case I'm going nuts and have made a stupid mistake, but it appears perfectly fine: <p><a href="mailto:[email protected]">[email protected]</a></p> Has anyone come across this when using jQTouch? Or can anyone at least suggest a way that I can debug this? At the moment when I tap the non-working link it flashes red (the active link state) and absolutely nothing else happens.

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• How does this If conditional work in Python?

  - by Sergio Boombastic

  from google.appengine.api import users from google.appengine.ext import webapp from google.appengine.ext.webapp.util import run_wsgi_app class MainPage(webapp.RequestHandler): def get(self): user = users.get_current_user() if user: self.response.headers['Content-Type'] = 'text/plain' self.response.out.write('Hello, ' + user.nickname()) else: self.redirect(users.create_login_url(self.request.uri)) application = webapp.WSGIApplication( [('/', MainPage)], debug=True) def main(): run_wsgi_app(application) if __name__ == "__main__": main() I don't understand how this line works: if user: self.response.headers['Content-Type'] = 'text/plain' self.response.out.write('Hello, ' + user.nickname()) else: self.redirect(users.create_login_url(self.request.uri)) I'm guessing the users.get_current_user() return a boolean? Then, if that is the case how can it get a .nickname() method? Thanks for the guidance.

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• WCF RIA Services v1.0 Timeouts

  - by Dan Wray

  I have a RIA service methods which return quite a large amount of (binary) data to my silverlight application. The methods themselves (database access etc) complete quickly, but since I upgraded to v1.0 from the RC2 I've been experiencing timeouts, even when I limit the data returned to the smallest objects. Debug shows the method returning, then 20-30 seconds later the silverlight "method complete" event will fire. There is not enough data to cause that much lag. Could anyone suggest why this might be? I've been unable to find any breaking changes documentation specific to the RC2 = 1.0 upgrade. Trying to eliminate any other possible causes also, but this is literally a case of worked before the install, doesn't work now! (also upgraded silverlight 4 tools for vs).

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• Why do I get a "Day too big" error from Perl?

  - by azp74

  I have been helping someone debug some code where the error message was "Day too big". I know that this springs from localtime and the Y2038 bug (most google results appear to be people dealing with cookies expiring well into the future). We appear to have 'fixed' the problem by using time to get the current date. However, given that none of our original dates should have hit the 2038 issue I'm sceptical that we've actually fixed the problem ... Are there other instances that anyone knows of where one would hit "day too big"? OS is Solaris. Sample code - the actual code is quite large and the person I'm working with hasn't actually isolated the offending part (which is why I'm worried the 'fix' is not actually a fix). If I can put together something concise which reproduces the issue I will post!

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• How can I make the Python logging output to be colored?

  - by airmind

  Some time ago I saw a Mono application with colored output, probably because of it's log system, because all the messages were standardized. Now, Python has the logging module, and it let you specify a lot of options or customize it entirely, so I'm imagining that something like that would be possible too with Python, however I could not find it anywhere. Is there any way to make the Python logging module to output in color? What I want is for error messages to appear in red, for instance. Debug messages in blue or yellow, and so on. Of course this would probably only work on Linux, with compatible terminals (most modern terminals are), but I could fallback to the original logging output if color is not supported. Any ideas?

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• Access Rules created by WSAT are not enforced

  - by rsteckly

  Hi, I'm trying to implement roles in my site. There are several projects in the solution, one of which is a web application. In that web application, I'm trying to use WSAT to create three roles. There are many folders for the application. I've used WSAT to define role based access rules for each folder. However, when I debug and navigate to those pages, they do not redirect to a login and show me the protected page. There are web.config files in each folder. Why would the system not enforce these rules? My web.config file has: I've tested the connections in WSAT and they work. Any ideas?

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• Boost::Archive causing weird linker error.

  - by Dallin Wellington

  Does anyone have a clue why those two lines would cause that linker error? std::ifstream ifs("filename.file"); boost::archive::binary_iarchive iarchv( ifs ); Error 8 fatal error LNK1104: cannot open file 'F:\dev\project\build\win32-unit\tests\Debug\framework_core_tests.lib' ramework_core_tests framework_core_tests The same happens with any Boost::Archive type. Its trying to link against a library of the same name as my executable for some reason when that project doesn't nor never existed and is not defined as a library to link against in my project files.

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• GWT Internet Explorer Problem

  - by bhargava

  Hi All, I am running into a problem which is quite a bit surprising.I have an GWT application,which i can run perfectly fine on Firefox,but the same GWT application does not open up in Internet Explorer. When using Firefox i use <set-property name="user.agent" value="gecko1_8"/> and when i want to run in Internet Explorer i change it to <set-property name="user.agent" value="ie8"/> and debug.This way i am sure that the problem i am having is not related to deferred binding. When using the Internet Explorer (IE 8) i cannot even get into the onModuleLoad() part of my application.It looks as if Internet Explorer has downloaded all its stuff ,but has nothing to display. Is there something that i am missing here Thanks Bhargava

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• How do I get callgrind to dump source line information?

  - by Jeremybub

  I'm trying to profile a shared library on GNU/Linux which does real-time audio processing, so performance is important. I run another program which hooks it up to the audio input and output of my system, and profile that with callgrind. Looking at the results in KCacheGrind, I get great information about what functions are taking up most of my time. However, it won't let me look at the line by line information, and instead says I need to compile it with debugging symbols and run the profiling again. The program which I am profiling is not compiled with debug symbols, but the library is. And I know this, because interestingly, source code annotations for cachegrind work fine. When I run callgrind, it says the default is to dump source line information, but it just isn't doing that. Is there some way I could force it to, or figure out what's stopping it?

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• ComboBox ItemTemplate does not support values of type 'Image'

  - by Charlie

  I'm trying to bind a WPF combobox to an observable collection of images. Here is my collection: public class AvatarPhoto { public int AvatarId { get; set; } public BitmapImage AvatarImage { get; set; } } public ObservableCollection<AvatarPhoto> AvailableProfilePictures { get; private set; } Here is my xaml: Visual Studio gives me this compile time error: Property 'ItemTemplate' does not support values of type 'Image'. Why is this error seen? Thanks Update: thanks for the answer! It solved the problem. Now I have updated my code but I'm seeing this in the ComboBox: Why is it not displaying pictures correctly? In the debug window I can see my collection is correctly populated:

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• How to determine pixel color of System.Windows.Controls.Image?

  - by csciguy

  I have an Image from (System.Windows.Controls.Image). This image is positioned on a main canvas. I want to determine the alpha channel value of the mouse cursor when I click on any portion of this image. When doing something like the following, I'm getting an exception. {"Value does not fall within the expected range."} System.Exception {System.ArgumentException} Code: try{ CroppedBitmap cb = new CroppedBitmap(ac.displayImage.Source as BitmapSource, new Int32Rect((int)mousePoint.X, (int)mousePoint.Y, 1, 1)); byte[] pixels = new byte[4]; cb.CopyPixels(pixels, 4, 0); } catch (Exception ex) { System.Diagnostics.Debug.WriteLine(ex.Message); } The mousePoint.X, and mousePoint.Y are obtained when the user clicks on the main window. Is there a better way to do this?

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