pyhton_falsk启动项目报错

FLASK_APP = run_test.py
FLASK_ENV = development
FLASK_DEBUG = 0
In folder C:/code/1_project_code/AI/python_code/AI.Face.Server
C:\sunmnet\Anaconda\envs\AI.Face.Server_2.7\python.exe -m flask run

Serving Flask app "run_test.py"
Environment: development
Debug mode: off Usage: python -m flask run [OPTIONS]

Error: Could not import "AI.Face.Server.run_test".