flask报错：sqlalchemy.exc.NoReferencedTableError: Foreign key associated with column ‘user.role_id‘

sqlalchemy.exc.NoReferencedTableError: Foreign key associated with column ‘user.role_id’ could not find table ‘tbl_roles’ with which to generate a foreign key to target column 'id’ python版本：3.7.7 flas

>>阅读原文<<