NWDS 7.31 build errors: CMICardinality.ONE cannot be resolved

Hi,
I am getting the following errors after importing the WebDynpro Java DCs into NWDS 7.31, can anybody provide any resolution?
1. CMICaridality.ONE cannot be resolved
2. com.sap.tc.webdynpro.progmodel.context.DataNodeElement cannot be resolved
3. com.sap.tc.webdynpro.progmodel.gci.IGCIExternalController cannot be resolved
etc.
Thank you.
Any help, highly appreciate.
Regards,
Rambabu

Hi Peter,
Thanks for your reply. Yes, these are developed in 7.01 and now I am importing into NWDS 7.31 from NWDI 7.01. But, the DCs are getting migrated without any issues in NWDDS 7.31.
I have resolved the previous mentioned errors, but now I am getting another kind of errors
"Unhandled event loop exception", "java.lang.StackOverflowError" when I tried to open the view.
Any idea on these errors?
Thank you.
Regards,
Rambabu

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NWDS 7.31 build errors: CMICardinality.ONE cannot be resolved

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