What version are you running? 2.0.x What's the URL of the page containing the problem? /r/new/ What steps will reproduce the problem? 1. Post a locally-generated diff against a Git repository on Bitbucket 2. See a file not found error. What is the expected output? What do you see instead? We should either propagate the error message stating that a base commit ID is needed and to use RBTools, or we really should offer a field to fill in (much like we do with base paths). As it is, it's pretty confusing for users, who just think their diff is bad.