Mod importing has been dramatically improved. If an error or any problems happen during import of a mod, the importer skips that mod and continues importing the others. If there are any mods causing problems or conflicting with others, an error message is displayed after import specifying which mod is causing problems, while the other mods should continue working.
I hope this helps clear up some of the problems people are having with import errors and mod conflictions.
Regards,
Robert.