There is a known bug in CpStudio concerning this behavior: When multiple versions of the same baseRef are allowed, and it's not the first given version that is available and in use in the project, this obect is shown as cause of the version conflict although there is no problem with it. In reality, some other object required as baseRef is missing. I am afraid there is no easy way in CpStudio to find the missing object. When using the ObjectBrowser to download the objects, the required base objects should be selected automatically, that's why the bug does not occur that often. If you cannot work with the ObjectBrowser, you need to check all the baseRefs in the objects manually and recursively.
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