In general, You only delete the world context and the imported(non-system) carefully, you can find all to check one by one. At that time for my case, i fixed that by deleting the world context, but， obviously it is be completely exhausted.
In general, You only delete the world context and the imported(non-system) carefully, you can find all to check one by one. At that time for my case, i fixed that by deleting the world context, but， obviously it is be completely exhausted.