HTTP Error 500.19-internal Server error cannot access the requested page because the associated configuration data for the page is invalid.

On the WIN10 or server2016, we installed IIS, the website hangs up, access, may report the following error, this time, in fact, we should first realize that the error does not tell us the real reason, the wrong information is not complete, so, we do not immediately find the reason, Instead, the error details are made, as follows:

500-Internal server error. There is a problem with the resource you are looking for, so it cannot be displayed.

Open IIS:

Well, next, we'll see the real reason for the error, as follows:

HTTP Error 500.19-internal Server error cannot access the requested page because the associated configuration data for the page is invalid.

This error is due to the fact that our IIS installation is not fully loaded:

Just put this on, as shown in, and it's OK.

HTTP Error 500.19-internal Server error cannot access the requested page because the associated configuration data for the page is invalid.