ImportError: cannot import name 'app_ctx' from 'flask.globals'

This error occurs when the name 'app_ctx' cannot be imported from the 'flask.globals' module in Flask.

This error can occur due to several reasons:

1. Outdated Flask version: Ensure that you are using the latest version of Flask as older versions may not support the 'app_ctx' attribute.

2. Incorrect import: Check if you are importing the 'app_ctx' attribute correctly. The correct syntax for importing 'app_ctx' is 'from flask import app_ctx'.

3. Circular import: If you have circular dependencies in your Flask application, it can cause issues with importing attributes. Try to avoid circular dependencies by restructuring your application.

4. Name conflict: Check if there is any name conflict in your code. Sometimes, if you have defined a variable or function with the same name as a Flask attribute, it can cause issues with importing the attribute.

To resolve the issue, try updating your Flask version, check your import statements, avoid circular dependencies, and ensure that there are no name conflicts in your code.