Error messages given when installing WaterCAD SS3 with InRoads SS2: "OS could not load C:\Program Files\Bentley\InRoads Group V8.11\bin\gpkCoreRoadAT.2.0.dll error 127" and "MDL Loader: Unable to load library (DLL or MDL shared library) gpk

Go to C:\Program Files\Bentley\MicroStation V8i (SELECTseries)\MicroStation\config\appl and edit the WaterCAD.cfg file.  The last line of the file says, “MS_LIBRARY_PATH < $(MS_WATERCAD_ROOTDIR)”.  Change the < sign to a > sign and the issue will be resolved.