Simply click "Show Issues" and it will show you all the errors that have occurred while attempting to load the program up. Usually the issues tend to be fairly minor, but sometimes they can be significant, but it's usually difficult to tell unless you take a deep look into it.
If I recall correctly, the current J/Z line that is available for download is in a rather early stage at present, hence the low detail at the moment. But wait for the full version to be released and that version, if installed accordingly, should be fully detailed.