Error when connecting to database

[SantiDu]

Error: Connection info needed in SQLAlchemy format, example: postgresql://username:password@hostname/dbname or an existing connection: dict_keys([]) invalid literal for int() with base 10: '' Connection info needed in SQLAlchemy format, example: postgresql://username:password@hostname/dbname or an existing connection: dict_keys([])

[henrymei]

Are you passing in the right credential strings? Either use the env var DATABASE_URL or preformat the string using % or format().