While building an Android app project under Studio, the build process terminated with the error,
/home/user1/Android/Sdk/build-tools/22.0.1/zipalign: error while loading shared libraries: libz.so.1: cannot open shared object file: No such file or directory Error:Execution failed for task ':app:zipalignDebug'. > Process 'command '/home/user1/Android/Sdk/build-tools/22.0.1/zipalign'' finished with non-zero exit value 127
The problem was resolved by installing the lib32z1 package.
$ sudo apt-get install lib32z1