Issue with building source code - SPImportHelper namespace

Jan 4 at 7:07 AM
I downloaded the source code ( April 29, 2016.

When I build the solution it complains about 3 namespace that cannot be found:
  • SPImportHelper
  • DataSetImportToSharePoint_Worker
  • DataSetImportSettings
  • ImportProgress
Anyone have any insight on why I may be getting errors on these namespaces?
Jan 18 at 9:47 AM
Source is installed to the code examples directory when the tool is installed
Feb 1 at 9:30 PM
Cannot find the sourcecode for SPImporthelper in the project nor in installed directory