Im getting an error about "trying to add package but there is already a package to generate with the same id"

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Dont know why its happening, but here are the messages. Let me know if you have found these errors before and if you know a fix.

LogWorldPartition: Error: [Cook] Trying to add package /34e6cf60-457f-d0ce-4f39-e6996176add3/MyProjectE/GENERATED/8TGJ3EDK8DVLLYWL9JCPLUKKW in context but there is already a package to generate with the same ID (141903911960238951). Other package: /34e6cf60-457f-d0ce-4f39-e6996176add3/MyProjectE/GENERATED/8TGJ3EDK8DVLLYWL9JCPLUKKW Id 141903911960238951