The CIL generator found errors and could not save the new assembly in AX 2012

"The CIL generator found errors and could not save the new assembly"


The following should resolve the problem:
Full compile AX 
Stop the AOS 
Delete all records from the SysXPPAssembly table in SQL (the table is used to contain the assemblies and to share between multiple AOS instances) 
Delete the DLL and netmodule files in your AOS's bin\xppIL directory 
Restart the AOS 
Perform full CIL generation