Resharper: Cannot resolve symbol ‘Eval’ in VS2010 SP1

I just installed SP1 for VS2010, and since then I get error messages from Resharper for stuff that used to work and be ok for Resharper (5.1) before.

The error messages are “Cannot resolve symbol ‘Eval’” and some other methods other than Eval.

How do I solve this?
Is there a fix?
Is there some resharper cache that I must delete/clear?

(The code compiles and runs as usual)


Thank you for visiting the Q&A section on Magenaut. Please note that all the answers may not help you solve the issue immediately. So please treat them as advisements. If you found the post helpful (or not), leave a comment & I’ll get back to you as soon as possible.

Method 1

I would try deleting the _ReSharper.{SolutionName} directory completely if clear cache fails.

You might want to close VS2010 before you do that.

EDIT: Try this only if @Andrew Finnell solution doesn’t work.

Method 2


Resharper Menu -> Options -> General -> Clear Cache button

Method 3

I had this problem in spades in my multi-project VS solution. Tried Julien + Andrew’s solutions and they did not resolve the issue. But everything compiled just fine and worked as normal — it was simply the “Errors in Solution” that kept showing the errors (which also showed up when you looked at the code in the right-hand-ReSharper-margin).

It turns out I had inadvertently deleted the web.config file in one of the solution’s web projects during some version control operations. Who knew that thing was important?

I restored the web.config file, cleared the cache and deleted the R# cache directories and then rebuilt all of the projects individually and the issues went away.


Method 4

The solutions of @Andrew Finnell and @Julien Bérubé, alone and combined, did not fix my problem of “Cannot resolve symbol”.

The comment of @bdwakefield pointing to here finally shed light on my problem.

It turns out that my “not resolved symbol” contains a web reference, and ReSharper gets lost there somehow.

By the link above it is possible to see that this is also an issue for many people, but JetBrains guys were not able to reproduce the error until now (see here).

Method 5

I was having the same problem with one of my projects. I reported the issue to JetBrains and they requested a VS solution which has the problem.

So, I decided to spend a few hours trying to narrow down the problem as much as possible. I found out that the issue is related to a tool I use which strips out information from .DLLs.

If I don’t strip the .DLLs, Resharper works fine without showing any “cannot resolve symbol” errors. However, If I do strip the .dll, then ReSharper starts to show these “cannot resolve symbol” errors. In both cases, Visual Studio compiles the program and the program runs fine.

I am working with JetBrains to get the issue resolved.

In the mean time, I am able to workaround the problem by using versions of my .DLLs which do not have any information stripped out of them.

All methods was sourced from or, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0

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