Visual Studio 2010 Close DataSet Designer Bug

I have a strange issue with Visual Studio. Sometimes when I close a dataset from designer mode all of a sudden I get hundreds of errors popping 开发者_运维百科up. There are all sorts of different errors related to the dataset just closed. To fix it I have to close VS down and reopen the dataset. I'm worried if I try to rebuild without closing then it will save the dataset with the errors.

Any ideas why this is happening?

See this image for a list of errors:

I have had a lot of issues (locking exe files, updating service references and so on) with VS 2010. But after VS 2010 SP1, I don't see those errors. Hope you have SP1