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Thread: error ":: error: cannot open output file debug\assign2_9.exe: Permission denied"

  1. #1
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    Default error ":: error: cannot open output file debug\assign2_9.exe: Permission denied"

    My program ran about three time but when I ran it the forth time it gave the error ":: error: cannot open output file debug\assign2_9.exe: Permission denied" ":: error: collect2: ld returned 1 exit status". I did not change anything in the code. WHATS CAUSING THIS ERROR PLEASE HELP!

  2. #2
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    Default Re: error ":: error: cannot open output file debug\assign2_9.exe: Permission denied"

    Looks like an executable was already started, but not closed.
    Qt Assistant -- rocks!
    please, use tags [CODE] & [/CODE].

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    Default Re: error ":: error: cannot open output file debug\assign2_9.exe: Permission denied"

    Windows locks executables when they are running. When the application is running during a build the linker cannot replace the executable and fails in the fashion you describe.
    "We can't solve problems by using the same kind of thinking we used when we created them." -- Einstein
    If you are posting code then please use [code] [/code] tags around it - makes addressing the problem easier.

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    Default Re: error ":: error: cannot open output file debug\assign2_9.exe: Permission denied"

    Hello! I have a same problem. I must open every time "Task Manager" for ending task. For example, I created the simple application with a dialog:

    Qt Code:
    1. #include "Dialog.h"
    2. #include <QApplication>
    3. #include <QMessageBox>
    4.  
    5. int main(int argc, char *argv[])
    6. {
    7. QApplication app(argc, argv);
    8.  
    9. app.setApplicationName( "Single Point" );
    10. app.setApplicationVersion( "0.1" );
    11.  
    12. #ifndef QT_NO_OPENGL
    13. Dialog w;
    14. w.show();
    15. #else
    16. QMessageBox::information( NULL, "Error", "OpenGL support required");
    17. #endif
    18.  
    19. return app.exec();
    20. }
    To copy to clipboard, switch view to plain text mode 

    I receive:
    error: cannot open output file debug/SinglePoint.exe: Permission denied

  5. #5
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    Default Re: error ":: error: cannot open output file debug\assign2_9.exe: Permission denied"

    I assume you are seeing the modal message box, closing that, and having the program fall through to the main event loop. The program stays running in that case. Try this:
    Qt Code:
    1. #include "Dialog.h"
    2. #include <QApplication>
    3. #include <QMessageBox>
    4.  
    5. int main(int argc, char *argv[])
    6. {
    7. QApplication app(argc, argv);
    8.  
    9. app.setApplicationName( "Single Point" );
    10. app.setApplicationVersion( "0.1" );
    11.  
    12. #ifndef QT_NO_OPENGL
    13. Dialog w;
    14. w.show();
    15. return app.exec();
    16. #else
    17. QMessageBox::information( NULL, "Error", "OpenGL support required");
    18. return 1;
    19. #endif
    20. }
    To copy to clipboard, switch view to plain text mode 

  6. The following user says thank you to ChrisW67 for this useful post:

    8Observer8 (15th August 2014)

  7. #6
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    Default Re: error ":: error: cannot open output file debug\assign2_9.exe: Permission denied"

    Thank you very much for your help

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