If there’s anyone else out there using Buffalo to build web-apps, I just discovered that it doesn’t clean up old versions of bundled JavaScript files. This means that the public/asset directory can grow to gigabytes in size, eventually reaching the point where Go will simply refuse to embed that much data.
The tell-tail sign is this error message when you try to run the application:
too much data in section SDWARFSECT (over 2e+09 bytes)
If you see that, deleting public/assets should solve your problem.