Azure function - 函数开始给出错误的值不能是 null。 参数名称：提供者

Question

You are using an outdated version of the Azure Functions Core Tools. For more information, 
please see: https://aka.ms/func-v2-upgrade
Found Python version 3.6.9 (python3).

Azure Functions Core Tools
Core Tools Version:       2.7.3188 Commit hash: f5984038c7377e9437f71191bff1d5818dd1fa8d
Function Runtime Version: 2.0.14786.0

AZURE_FUNCTIONS_ENVIRONMENT: Development
Value cannot be null.
Parameter name: provider

When I run func start gives me the above error of value and parameter. Appreciate the Help.

Answer 1

I reproduce the issue in my side and just remove a part of code in host.json , it works.

Remove this part of code:

And when the function can start success, then I restore the part of code in host.json and then it can also start success.