Could not load file or assembly ‘System.Web.WebPages, Version=2.0.0.0

Recently I moved an AbleCommerce Gold R12 install to Windows Server 2019. Immediately the RESTful Web API built into the app started responding with 404 errors. It was as if the MVC routes simply no longer existed even though they were clearly being built in the web api bootstrap code. Fast forward to today as I deploy a minor unrelated update to another DLL. As part of that update, the System.Web.WebPages dll was also deployed. Something recently had updated that DLL. While everything worked locally, suddenly the .Net application was throwing 500 errors. Couldn't even get an Except...

Jan 10, 2020 READ MORE