Could not load file or assembly 'Microsoft.VisualStudio.Web.PageInspector.Loader

Question

Could not load file or assembly \'Microsoft.VisualStudio.Web.PageInspector.Loader, Version=1.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a\' or one of its depen         


        

Answer 1

I had this issue after installing Visual Studio 2019 (whilst 2017 was still installed). It's caused by a missing component - AspNetDiagnosticPack.msi - that fails to install a required package into C:\ProgramData\Microsoft\VisualStudio\Packages\

The solution that worked for me was this:

• Close Visual Studio

• Download the package from:

https://download.visualstudio.microsoft.com/download/pr/e13d544f-5a3c-4bb3-9a7c-1e56b1f90e10/f8e5888ff01a7009ef8c2ef16aa02ab9/aspnetdiagnosticpack.msi

• Run the installer and install.

This should fix it.

More information can be be found: https://developercommunity.visualstudio.com/content/problem/398640/could-not-load-file-or-assembly-microsoftvisualstu-7.html