I added a code to calculate cummulative sum of the second value in the chart via code injection.  When I hit the "Compile" button, it gave me the following error:

Info:

Compiling...

error CS0006: Metadata file 'C:\WINDOWS\assembly\GAC_MSIL\Nevron.System\10.5.31.12__6a987feae5e496fd\Nevron.Presentation.dll' could not be found

error CS0006: Metadata file 'C:\WINDOWS\assembly\GAC_MSIL\Nevron.System\10.5.31.12__6a987feae5e496fd\Nevron.Chart.dll' could not be found

error CS0006: Metadata file 'C:\WINDOWS\assembly\GAC_MSIL\Nevron.System\10.5.31.12__6a987feae5e496fd\Nevron.Chart.Template.dll' could not be found

Compiled with 3 error(s).

I had checked that the Nevron.*.dll are in GAC and this is what listed for "Referenced Assemblies" (I left it as default).

What do I need to do to get the code injection to work? Should I copy the dll files to the