Error: Lookup Transformations <transformation name> and <transformation name> have the same cache file name prefix <cache file name> but have different override strings <override string> vs. <override string>.
Two Lookup transformations have different query overrides, but have the same cache file name.
If you want to share the cache, use the same query override. If you do not want to share the cache, change the cache file name for one of the Lookup transformations.