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While debugging my code in vS2010 i get the buid error:
" Visual Studio cannot start the debugging because the debug target 'D:\Users\Mike\AppData\Local\Temporary
Projects\beginner\bin\Debug\beginner.exe' is missing.Please build the project and retry again."
What should I do?
Regards

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As 's quick resolution shows, sometimes the cause is simple. When the IDE cannot start a debug session for a project, the root can also be a configuration, build step, or an external tool. The checklist below lists the most common, actionable checks that were not covered in the thread.

  • Clean and rebuild the solution (Build > Clean Solution, then Rebuild). That forces MSBuild to recreate outputs and reveals compile errors.
  • Check Configuration Manager and make sure the project is marked to be built for the active configuration (Debug/Release).
  • Confirm the correct startup project is selected (right-click project > Set as StartUp Project).
  • Verify Project Properties: Output type (Application vs Class Library) and Output path point where you expect the runnable files to land.
  • Inspect Post-build Events and custom MSBuild targets; temporarily disable them to rule out accidental moves/deletes.
  • Look for leftover processes locking the binary (Task Manager). Kill any orphaned instances before rebuilding.
  • Check antivirus or Windows security features that might quarantine or block executables; whitelist the output folder if needed.
  • Ensure platform target and solution/platform settings match (Any CPU / x86 / x64) to avoid build skipping for the wrong platform.
  • Increase MSBuild verbosity (Tools > Options > Projects and Solutions > Build and Run) to Detailed and read the Output window to see exactly where files were written and why a build step may have skipped.
  • Watch for permission, long-path, or network-drive issues that prevent file creation.

If the problem persists, create a minimal new project and add your source files to it. The detailed build log plus a clean repro usually shows whether the issue is the project file, a build step, or the environment.

Member Avatar for geekme

it's solved.I forgot to save the program.

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