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What is the difference between debug mode and release mode?

    Question

  • Can anybody help me with the difference between release mode and debug mode!!
    I have no idea of what they are and their significance.

    Wednesday, December 07, 2005 6:24 PM

Answers

  • Debug and Release are different configurations for building your project. As the name implies, you generally use the Debug mode for debugging your project, and the Release mode for the final build for end users. The Debug mode does not optimize the binary it produces (as optimizations can greatly complicate debugging), and generates additional data to aid debugging. The Release mode enables optimizations and generates less (or no) extra debug data.

    Hope this helps,
    -Tom Meschter
    Software Dev, Visual C# IDE
    Wednesday, December 07, 2005 10:23 PM

All replies

  • Debug and Release are different configurations for building your project. As the name implies, you generally use the Debug mode for debugging your project, and the Release mode for the final build for end users. The Debug mode does not optimize the binary it produces (as optimizations can greatly complicate debugging), and generates additional data to aid debugging. The Release mode enables optimizations and generates less (or no) extra debug data.

    Hope this helps,
    -Tom Meschter
    Software Dev, Visual C# IDE
    Wednesday, December 07, 2005 10:23 PM
  • Also, changing from Debug to Release mode can screw up directory access, I've noticed.  I had an application that always accessed a particular subdirectory.  Always worked great until I changed to release mode and did the build.  Maybe someone can explain why?
    Friday, July 28, 2006 4:25 AM
  • Because the release and debug versions run from different folders, then any code that uses relative paths may behave differently, because the relative paths may be different.

    Friday, July 28, 2006 8:32 AM
  • So, it's simply a matter of changing the relative path before Release?  For example, I have an application that opens files using an openFileDialog control.  I have two string variables, declared right after the "required designer variables", that I initialize in the form's constructor.

    int myindex = Application.ExecutablePath.IndexOf("Debug");

    app_directory = Application.ExecutablePath.Substring(0,myindex+6);

    contacts_directory = app_directory + "Contacts\\";

    Now, I then use string variable contacts_directory in the btnOpen_Click( ) event to specify the Contacts subdirectory of the application directory:

    fileDialog.InitialDirectory = contacts_directory;

    So, it's simply a matter of:

    fileDialog.InitialDirectory = contacts_directory;

    Now, never mind the fact that .InitialDirectory doesn't work right except for the first time btnOpen_Click( ) is used after the application starts.  That's a separate issue that I know many, many people have complained about.

    It sounds like what I need to do before building the Release is change "myindex" above to:

    int myindex = Application.ExecutablePath.IndexOf("Release");

    substituting "Release" for "Debug".  It seems like if folders Debug and Release are on the same level, and each contains a Contacts subdirectory, that this substitution would suffice.  But it does not.  I get the following runtime error in debug mode:

     <img src="http://www.geocities.com/kyrathaba/inline_images/app_error.JPG">

    What is this "C:\DoContacts" directory?

    Friday, July 28, 2006 12:07 PM
  • Also, I have a question for the release.

    After I release my project, the executable file is only run with the machine that I compile it.  If I take that file and run with a different PC, it gives me an error message as below.

             "This Application has failed to start because the application configuration is incorrect.  Reinstalling the application may fix the problem. "

     

       

     

    Wednesday, October 25, 2006 11:10 PM
  • the other PC should have the correct version of the .NET Framework installed in order to run the application. What happens if you run it in debug mode? (compile in debug mode, then run that app on the other computer).
    Wednesday, October 25, 2006 11:21 PM
  • From debug mode, it stll gives the same error.

    How do I install .Net Framework?

    Thanks

     

    Wednesday, October 25, 2006 11:33 PM
  • you can either create a setup and deployment project in the full VS.NET (non express) which will download and install the .NET Framework automatically, and install your application.

    download .NET Framework 2.0:

    http://www.microsoft.com/downloads/details.aspx?FamilyID=0856eacb-4362-4b0d-8edd-aab15c5e04f5&displaylang=en

     

    Wednesday, October 25, 2006 11:40 PM
  • When you take the file to a different PC, do you take with it the configuration file? (YourApp.exe.config)
    Thursday, October 26, 2006 2:26 PM
  • Tom Meschter,

    Do we have any performance difference between building application in release and debug mode?

    Regards,

    Kiruba sankar.S
     
    • Proposed as answer by Akhil Khare 15 hours 33 minutes ago
    • Unproposed as answer by Akhil Khare 15 hours 33 minutes ago
    Monday, December 28, 2009 9:56 PM
  • In Debug Mode your .exe has debug information inside of it (source code, variable names and other similar stuff like that).

    In Release Mode your .exe lack of debug information makes it smaller and probably performs better due to its smaller footprint.


    15 hours 32 minutes ago