ASP.NET on Windows Server 2012 R2 IIS 8.5 HTTP 500.19 Error



  • Okay, hot on the heels of my last issue now I have the actual app that I want to deploy copied over from a working (but older) system. The error that I get is that I have duplicate configuration data, not something that I would expect to have worked in one place and not in another. Not sure why this would be coming up now.

    0_1449495704032_50019.png

    HTTP Error 500.19 - Internal Server Error

    The requested page cannot be accessed because the related configuration data for the page is invalid.



  • OMG, nevermind. Figured that out too. Was a combination of a missing default path and the same .NET CLR pool version as before. It's a subfolder and needs its CLR version set, too. Argh. All is well now.