Below error message pops up when checking out the pipelines from server.
This happens when user who has reported this issue is member of particular projectwise group that doesn't have the delete permissions on the document in projectwise folder. Follow below steps to resolve:
If there is still some problem while trying to perform any operation against OpenPlant ModelServer, then please create a Service Request and contact Bentley Product Advantage group along with the list of all relevant details to get in depth analysis and for possible solution or workarounds.
http://communities.bentley.com/products/plant/design___engineering/w/plant_design_and_engineering__wiki/22883.openplant-modelserver-08-11-11-xxx
Bentley Product Advantage Group requests that you please confine any comments you have on this Wiki entry to this "Comments or Corrections?" section. THANK YOU!