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Editorial Team
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Asked: 2026-05-16T21:18:01+00:00

I’ve tried deploying my asp.net app to a new server and I get this

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I’ve tried deploying my asp.net app to a new server and I get this error:

Could not load file or assembly
‘System.Web.Entity, Version=3.5.0.0,
Culture=neutral,
PublicKeyToken=b77a5c561934e089’ or
one of its dependencies. The system
cannot find the file specified.

Sure enough, System.Web.Entity isn’t found in C:\Windows\Assembly. However, the server has MS .NET Framework 3.5 installed and also MS ASP.NET 2.0 AJAX Extensions 1.0.

Is this something I need to deploy with my app, or something I need to be installed on the server? It’s not my own server so xcopy deployment within my app folder would be much better if that’s possible.

(Sorry this is probably a real newbie question.)

thanks!

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1 Answer

  1. Editorial Team

    It turned out the dependency was on .NET framework 3.5 SP1

    But also I was able to do without the reference, as @Aristos suggested.

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