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2275957 - DETMAINMODE phase: No operation mode detected for this system.


  • Upgrade/update  using SUM tool
  • In phase DETMAINMODE   the following  error was reported


1 ETQ399 Checking for unique operation mode.
1EETQ399 Last error code set is: No operation mode detected for this system. 
Need to check the stack file (<path>/<stack_filename>.xml).
1EETQ204 Upgrade phase "DETMAINMODE" aborted with severe errors



Systems running on NetWeaver 7.xx


KBA , BC-UPG-TLS-TLA , Upgrade tools for ABAP , SV-SMG-MAI , Maint. Optimzer replaced by Maintenance Planner: BC-UPG-MP , Problem

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