Error:Execution Failed for Task ':App:Processdebugresources'. > Java.Io.Ioexception: Could Not Delete Folder "" in Android Studio

Error:Execution failed for task ':app:processDebugResources'. java.io.IOException: Could not delete folder in android studio

I guess some of the files in the target build directory is open in another tool you use. Just a file handle open in the folder which has to be cleaned. The build task 'clean' wants to delete all the files in the build directory(normally 'target') and when it fails, the build fails.

Error: Execution failed for task ':app:clean'. Unable to delete file

After I posted a bug report to the Kotlin bug tracker, I was notified of Issue 61300 on the AOSP tracker. That seems to be the cause. Since there's nothing I can do at the moment, I'll mark this question as answered, and I'll update the answer if the bug is fixed.

In the meantime, if you're running Windows, I believe I've found a workaround. You'll need to download LockHunter (at your own risk of course), then add the following to your module's gradle.build file, replacing the lockhunter variable with your path to LockHunter.exe:

task clean(type: Exec) {
    ext.lockhunter = '\"C:\\LockHunter.exe\"'
    def buildDir = file(new File("build"))
    commandLine 'cmd', "$lockhunter", '/delete', '/silent', buildDir
}

This causes LockHunter to forcefully and silently unlock and delete the build files when the app:clean task runs.

java.io.IOException: Could not delete path 'C:\Users\nirma\Language\app\build\generated\source\r\debug\android\support\coreui'

Your install of Android Studio is unable to delete that temporary folder, likely due to a permissions issue. You will need to delete that folder manually via Windows Explorer, using admin privileges if required. Your builds should complete properly again after that.

Error:Execution failed for task ':app:transformClassesWithInstantRunSlicerForDebug'. java.io.IOException:

:app:transformClassesWithInstantRunSlicerForDebug'.
java.io.IOException: Failed to delete

-- try to clean project and rebuild project.

From @Kael: A clean is performed via Build -> Clean Project or Build -> Rebuild Project.

Android Studio: Error after deleting file

I cleaned the project and built it and it worked

Unable to delete directory in Android Studio

I have exactly the same problem. The only temporary solution I've found is to exit Android Studio, delete the entire "build" folder (not only the jars), and then getting back to Android Studio to Build it.

The first build goes without errors or any warnings, but to rebuild again you need to follow the same steps as before :(

This is not a solution, obviously, but seems like the problem comes out from any service keeping occupied the files to be deleted in the "Clean" part of the rebuilding process.

EDIT:

It seems there is a problem with NTFS file system in android 2.0
Check out in https://code.google.com/p/android/issues/detail?can=2&start=0&num=100&q=&colspec=ID%20Status%20Priority%20Owner%20Summary%20Stars%20Reporter%20Opened&groupby=&sort=&id=206219

Execution failed for task ':app:cleanMergeDebugAssets' while running the app in flutter

The problem was with the Kotlin plugin in VS Code, so removing it should fix our problem!

Now I able to run the project in debug mode. Below is my flutter doctor

Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel stable, v1.17.4, on Microsoft Windows [Version 10.0.17763.1282, locale en-MY)

[√] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
[√] Android Studio (version 4.0)
[√] VS Code (version 1.46.1)
[√] VS Code, 64-bit edition (version 1.46.1)
[√] Connected device (1 available)

I reinstall the Kotlin plugin in VS Code, the problem came back. I removed it, the project runs. So I guess its the plugin. The plugin I used and removed is Kotlin 0.2.17

Can anyone double-check whether the problem is because of this?

Execution failed for task ':app:processDebugResources' even with latest build tools

Set your compileSdkVersion to 23 in your module's build.gradle file.

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