What is error 3004?

Question

I updated my database and the I got this message:

 Error 3004: Problem in mapping fragments starting at line
 927:No mapping specified for properties User.Username in Set User.
 An Entity with Key (PK) will not round-trip when:
 Entity is type [Db_AcsModel.User]

C:\Users\User\Desktop\MVC\ACS.Domain\AcsModel.edmx

see this http://stackoverflow.com/questions/6063701/error-3004-problem-in-mapping-fragment-starting-at-line — vajapravin, Jun 04 '12 at 04:39

score 0 · Answer 1 · answered Jun 04 '12 at 04:39

0

You most likely added a new filed or deleted a filed but the property for the field still exist in your designer and entity class you can manually delete or map the entity variable or you can delete the entity and update your model again.

answered Jun 04 '12 at 04:39

COLD TOLD

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I just changed a property so i can delete tables with cascade reference. – Yesenhita Jun 04 '12 at 04:41
you mean like from string to int – COLD TOLD Jun 04 '12 at 04:47
Nop, it was just two tables, one of them had a fk from the another one, then i wanted to delete with both of them so i changed it to cascade reference and then i got that message on Visual Studio – Yesenhita Jun 04 '12 at 05:06

What is error 3004?

1 Answers1