CSS file not opening in Visual Studio 2010 SP1?

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Abhishek Ranjan picture Abhishek Ranjan · Jul 18, 2011 · Viewed 19.1k times · Source

I am unable to open CSS files in Visual Studio 2010 after adding to a project.

It shows the following error:

The operation could not be completed.Unspecified error.

Even if I try to edit embedded CSS in a webpage directly, IntelliSense doesn't appear.

The screenshot of the error.

Answer

deerchao picture deerchao · Sep 1, 2011

I found the solution from here:

I was having the same issue and found that by going to the Tools -> Extension Manager -> Online Gallery and search for/install the "Web Standards Update for Microsoft Visual Studio 2010 sp1" I was able to open CSS files again.

And it worked for me.

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