Could not load file or assembly 'WebGrease, Version=1.5.1.25624, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies


Answers

I know it's kind of late for the OP but I ran into the same problem while trying out the Bootstrap 3 for MVC 4 NuGet package, in my case it had something to do with the Microsoft.AspNet.Web.Optimization package, and managed to find a simple solution.

Try executing the following commands in the package manager console:

Install-Package Microsoft.AspNet.Web.Optimization
Update-Package WebGrease
Uninstall-Package Microsoft.AspNet.Web.Optimization
Uninstall-Package WebGrease
Install-Package Microsoft.AspNet.Web.Optimization
Update-Package WebGrease

The first two lines had no effect for me since those packages were already installed and updated by the Bootstrap 3 for MVC 4 package, but I ran them anyway and then it all compiled and ran great.

Question

I have an MVC4 Web api project. while running the service project i am getting an error

Could not load file or assembly 'WebGrease, Version=1.5.1.25624, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.

i have added the WebGrease.dll file and still its coming error

and tried with changing web.config

<bindingRedirect oldVersion="0.0.0.0-1.3.0.0"/>"

and

<bindingRedirect oldVersion="0.0.0.0-1.5.2.14234" newVersion="1.5.2.14234" />

please advice what i am missing.




Could not load file or assembly 'WebGrease, Version=1.5.1.25624 - Or any other version

Why you redirect Newtonsoft.Json version binding to version 7.0.0.0. There is no such version in your packages. Remove that redirection or add appropriate version of Newtonsoft.Json.





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