Android : Android studio is not running my project

Event log:

Gradle build finished with 1 error(s)

Gradle console:

:app:dexDebug The system cannot find the path specified.

FAILED

FAILURE: Build failed with an exception.

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  What went wrong: Execution failed for task ':app:dexDebug'.

  
  

  
  

  com.android.ide.common.internal.LoggedErrorException: Failed to run command: C:\Users\xxxxxxxxx\AppData\Local\Android\sdk\build-tools\21.1.1\dx.bat --dex --no-optimize --output C:\Users\xxxxxxxxx\AndroidStudioProjects\Studioone\app\build\intermediates\dex\debug --input-list=C:\Users\pabhuvignesh.k\AndroidStudioProjects\Studioone\app\build\intermediates\tmp\dex\debug\inputList.txt Error Code: 1 Output: The system cannot find the path specified.

  
  

  
  


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  Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

  
  

BUILD FAILED

Stacktrace:

Gradle build finished with 1 error(s)