I have created a project library dll and it resides in the bin directory of the solution. I've got a second solution that references that dll. In the VS2013 IDE my 'Using' directive is happy and down n the code when I reference a class in the dll the code is happy. If I view the object reference in the object browser all look ok. I've also looked in the csproj file and the correct reference is in there. When I try to build the project I receive the type or namespace for my dll could not be found error message. I've tried cleaning first, I've also closed VS2013 and restarted all to no avail. I've also tried copying the dll to the local bin directory for this solution and re-referencing and still no joy
Ok, I found the solution. The project that I am referencing is targeting .net4.5.2 of the framework. THe project that was referencing it was only referencing .net4.5 I have set this to .net4.5.2 and it now builds.
Thanks For all the input