Resource Info: Information Server 85 FP2 Transformer Stage Error
ubektas 27000478GM Visits (2002)
After upgrading to IIS 8.5 FP2 , Does Datastage Designer derivation editor in the transformer stage emit error "Unexpected error; quitting"
If yes,it is a known issue and refer to the technote
As mentioned in the technote you might apply temporary fix or installing the patch by contacting IBM Support for the fix