Error after Project Transfer FileToFile

[nxtControl]

I made this transfer from eab to eabx to convert to Jet4
Afterwards in the eabx i get this error when i want to add objects (Diagram)

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Enterprise Architect
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DAO.Recordset [3022]

The changes you requested to the table were not successful because they would create duplicate values in the index, primary key, or relationship.  Change the data in the field or fields that contain duplicate data, remove the index, or redefine the index to permit duplicate entries and try again.
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[ OK ]
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What did i wrong or is there another way to migrate from eab to eabx (Jet4)?

[qwerty]

You probably have to run a project integrity check beforehand. Shame on Sparx they do not enforce that.

q.

[nxtControl]

This worked. Thank you!