Unity Android Build Error WIN32 Exception ZipAlign

You need to copy the zipalign tool from sdk/build-tools/android-{version}/ to sdk/tools/


In Unity go to Edit>Preferences>External Tools> in "Android SDK Location" select the folder of android-sdk (C:\Program Files (x86)\Android\android-sdk) in my case.


  1. Find your copy of the Android SDK in explorer
  2. Go to build-tools and choose a version (e.g.build-tools\19.1.0)
  3. Copy zipalign.exe
  4. Come back out of build-tools
  5. Go into tools
  6. Paste zipalign.exe