The app needs a list of codes to function correctly in src/main/resources/codes.txt. To generate one, use this command: python src/vote_code_generator.py > src/main/resources/codes.txt.

For development, there is a sample file with easy to remember codes in src/main/resources/codes.txt.sample. Simply rename that file.

Prior to AppEngine 1.9.30, the local cloud storage needs system admin permissions to write to the disk.