ioscore-dataconstraintsentityxcode8
"In the uniqueness constraints attribute for entity, comma is not valid property" in Coredata Xcode 8
I created a database with Core Data on iOS. I initially set up a unique constraint in my Conversation entity. However, after removing it, I was getting an error: "In the uniqueness constraints attribute for entity Conversation, comma is not a valid property".
I looked at every field in my DataModel.xcdatamodeld but could not find any solution.
Solution
Its looks like a bug in Xcode 8. I have deleted all the attributes from the entity, cleaned the project and then added the attributes again. After that, the error was gone. Maybe this will help someone.
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