Users getting below error message when trying to run report - Top Vendor by YTD Purchases.
Error message - Object reference not set to an instance of an object.
Initially did below steps but no luck.
Stop AOS service.
Navigate to the following folder
C:\Program Files\Microsoft Dynamics AX\60\Server\MicrosoftDynamicsAX\bin\XppIL
Create a safe copy of the XPPIL folder content to another new local folder on the AOS computer (example: C:\XPPIL_SAVE)
Delete all folders and files inside the folder “C:\Program Files\Microsoft Dynamics AX\60\Server\MicrosoftDynamicsAX\bin\XppIL” but keep the folder “XPPIL” itself.
Start AOS service
Run a full CIL creation from AOT. This will create a fresh rebuild of all files/ folders inside the XPPIL folder.
Tried to compile the visual studio project associated to this report. Below error message pops up.
AX1004: Reference System.Core, Version=22.214.171.124, Culture=neutral, PublicKeyToken=b77a5c561934e089 was not a valid model assembly.
I verified the SDK and .Net Framework versions which already installed on server.
Microsoft Windows SDK for windows 7(7.1) version - 7.1.7600.0.30514
Microsoft .Net Framework 4.5.2 Version - 4.5.51209
Please let me know your suggestions to resolve this issue. Thank you.