IContainerProviderAccessor.ContainerProvider returned null, which is invalid. If the container provider belongs to the HttpApplication subclass, ensure that it is a static variable.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.InvalidOperationException: IContainerProviderAccessor.ContainerProvider returned null, which is invalid. If the container provider belongs to the HttpApplication subclass, ensure that it is a static variable.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
IContainerProviderAccessor.ContainerProvider returned null
原文：https://www.cnblogs.com/chucklu/p/12699321.html