I created a new hierarchical design ad I have used some of the interfaces from my previous flat design. While packaging the new design I am getting nearly thousands of error and all are same as shown below for different parts.
ERROR: Unable to disconnect CES pin "U33-2" UID=(323,8487,52) from physical net "GROUND" : Could not disconnect to PhysicalNet CesPin which is referenced to FlatPin
ERROR: Common DataBase lock error for CES physical net "GROUND": No object
This does not allow to package the design.
Then I went to CES from DxDesigner window and ran CES Diagnostic. Result was one error which could not be fixed by clicking "fix the errors".
Test: Physical net unique
Error 4008: The pin count for net GROUND may be incorrect because it contains implicit pins and the connectivity has changed. Please package the design to correct Not Fixed.
Can you please let me know if anybody has encountered same error? Any idea how to fix this?