Error while running zipalign

Question

I got this error when trying to export a signed apk in Eclipse

Error while running zipalign: Unable to open as zip archive

I have run the Help->Check for Updates to make sure the latest update is installed and SDK tools also up to date.

Answer 1

If the destination file already exists and it is opened by another process, then you will see this error.

Solving method: Rename the destination file, or close the application that already opens the file.

Answer 2

zipalign tool can't access to the source file, so you should verify path, file name, extension, permissions ...

Answer 3

If your pre-align APK is larger than 2GB, it will also cause this issue. Tested with build-tools 23.0.1 on Windows 10 machine.

Answer 4

I got this error because I had no write access to the target directory. Changing the permission accordingly resolved the problem.

Answer 5

I had the same problem with my zipalign command. Output path was correct but the folders did not exist which was provided in the output path and so i created the folders manually and then it all worked fine.

Answer 6

I was getting the same error message. Drove me crazy until i found that my destination path was invalid.

Zipalign will give you that error even if the apk is perfectly valid, but

• the path to the apk is invalid
• the destination is invalid or does not exists
• the permissions are invalid (apk is locked by other program)