By Service Packs Blog
When starting Cable and Harness Report in Inventor 2016 a message is shown that file "MFC71U.DLL" is missing and Report Generator does not start.
“reportgenerator.exe - System Error
The program can't start because MFC71U.DLL is missing from your computer. Try reinstalling the program to fix this problem.”
A resolution for this incident is being investigated for and Inventor 2016 hot fix
Workaround:
Copy needed files from an older Inventor release on your computer.
1. Go to Inventor installation folder of an older, existing Inventor release, typically "C:\Program Files\Autodesk\Inventor 20xx\Bin" *
2. Copy files "MFC71U.dll", "MSVCR71.dll" and "MSVCP71.dll"
3. Go to Inventor 2016 installation folder, typically "C:\Program Files\Autodesk\Inventor 2016\Bin"
4. Paste files from step 2 to this folder.
--> Cable and Harness Report should work as expected now in Inventor 2016:
* 20xx --> Inventor release existing on your machine. 2015 --> Inventor 2015
Source: Autodesk