[SOLVED] Code Coverage Results periodically gives: Empty results generated

Code Coverage Results periodically gives: Empty results generated

I've run into a recurring problem with a few different projects using MSTest in VS2012, where every now and then my code coverage stops working (seemingly at random) and instead gives me:

Empty results generated: No binaries were instrumented. Make sure the tests ran, required binaries were loaded, had matching symbol files, and were not excluded through custom settings. For more information see http://go.microsoft.com/fwlink/?LinkID=253731

I've checked the obvious (what it's suggested) but can't seem to figure out what is causing it.

Here is my runsettings file:

<?xml version="1.0" encoding="utf-8"?>
<RunSettings>
  <DataCollectionRunSettings>
    <DataCollectors>
      <DataCollector friendlyName="Code Coverage"
                     uri="datacollector://Microsoft/CodeCoverage/2.0"
                     assemblyQualifiedName=" Microsoft.VisualStudio.Coverage.DynamicCoverageDataCollector, 
                                             Microsoft.VisualStudio.TraceCollector, 
                                             Version=11.0.0.0, 
                                             Culture=neutral, 
                                             PublicKeyToken=b03f5f7f11d50a3a">
        <Configuration>
          <CodeCoverage>
            <ModulePaths>
              <Include>
                <ModulePath>.*\.dll$</ModulePath>
              </Include>
              <Exclude>
                <ModulePath>.*\.tests.dll</ModulePath>
              </Exclude>
            </ModulePaths>
            <Attributes>
              <Exclude>
                <Attribute>.*ExcludeFromCodeCoverageAttribute$</Attribute>
                <Attribute>.*GeneratedCodeAttribute$</Attribute>
              </Exclude>
            </Attributes>

            <UseVerifiableInstrumentation>True</UseVerifiableInstrumentation>
            <AllowLowIntegrityProcesses>True</AllowLowIntegrityProcesses>
            <CollectFromChildProcesses>True</CollectFromChildProcesses>
            <CollectAspDotNet>False</CollectAspDotNet>
          </CodeCoverage>
        </Configuration>
      </DataCollector>
    </DataCollectors>
  </DataCollectionRunSettings>
</RunSettings>

Solution

This link solved my issue: Issue with Code Coverage in VS 2012

Close Visual Studio 2012, find the .suo file, delete (or rename) it, restart. Worked fine. No idea what is in the .suo file that prevented proper coverage analysis.