docker部署有问题

[Iyhsy]

报错如下：

raceback (most recent call last):
  File "/app/app.py", line 15, in <module>
    from extensions import db
  File "/app/extensions.py", line 1, in <module>
    from flask_sqlalchemy import SQLAlchemy
ModuleNotFoundError: No module named 'flask_sqlalchemy'
Traceback (most recent call last):
  File "/app/app.py", line 15, in <module>
    from extensions import db
  File "/app/extensions.py", line 1, in <module>
    from flask_sqlalchemy import SQLAlchemy
ModuleNotFoundError: No module named 'flask_sqlalchemy'
Traceback (most recent call last):
  File "/app/app.py", line 15, in <module>
    from extensions import db
  File "/app/extensions.py", line 1, in <module>
    from flask_sqlalchemy import SQLAlchemy
ModuleNotFoundError: No module named 'flask_sqlalchemy'
Traceback (most recent call last):
  File "/app/app.py", line 15, in <module>
    from extensions import db
  File "/app/extensions.py", line 1, in <module>
    from flask_sqlalchemy import SQLAlchemy
ModuleNotFoundError: No module named 'flask_sqlalchemy'
Traceback (most recent call last):
  File "/app/app.py", line 15, in <module>
    from extensions import db
  File "/app/extensions.py", line 1, in <module>
    from flask_sqlalchemy import SQLAlchemy
ModuleNotFoundError: No module named 'flask_sqlalchemy'
Traceback (most recent call last):
  File "/app/app.py", line 15, in <module>
    from extensions import db
  File "/app/extensions.py", line 1, in <module>
    from flask_sqlalchemy import SQLAlchemy
ModuleNotFoundError: No module named 'flask_sqlalchemy'
Traceback (most recent call last):
  File "/app/app.py", line 15, in <module>
    from extensions import db
  File "/app/extensions.py", line 1, in <module>
    from flask_sqlalchemy import SQLAlchemy
ModuleNotFoundError: No module named 'flask_sqlalchemy'
Traceback (most recent call last):
  File "/app/app.py", line 15, in <module>
    from extensions import db
  File "/app/extensions.py", line 1, in <module>
    from flask_sqlalchemy import SQLAlchemy
ModuleNotFoundError: No module named 'flask_sqlalchemy'
Traceback (most recent call last):
  File "/app/app.py", line 15, in <module>
    from extensions import db
  File "/app/extensions.py", line 1, in <module>
    from flask_sqlalchemy import SQLAlchemy
ModuleNotFoundError: No module named 'flask_sqlalchemy'
Traceback (most recent call last):
  File "/app/app.py", line 15, in <module>
    from extensions import db
  File "/app/extensions.py", line 1, in <module>
    from flask_sqlalchemy import SQLAlchemy
ModuleNotFoundError: No module named 'flask_sqlalchemy'

[Futureppo]

Docker容器内没有安装flask_sqlalchemy这个Python包。删除缓存重新构建一下