I know there have been other references to this issue. But I didn't upgrade from one version of VS to another. I am currently using VS 2013. The project builds fine, and has even deployed successfully in the past. This is a brand new app. So it wasn't something inherited from another project. Where can I start looking? What can I post here that may be helpful for you guys to hopefully help me? It is a web api 2 site. I am using the publish command within VS2013.
Adding the lines below to my .csproj file seems to solve the same error for me:
<PropertyGroup>
<VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">10.0</VisualStudioVersion>
<VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
</PropertyGroup>
As part of trying to resolve the issue, I've also installed the MSBuild.Microsoft.VisualStudio.Web.targets Nuget Package. But I'm still not sure it was necessary in order to resolve the issue.