Thanks again for the response !
I am resending an answer as the first one was sent to Florian Pelgrim only. > Try to replace all http links to https in your package. Changing http to https didn't solve the issue. I still get this error : __________________________________________________________________________________________________________________________________________________________ What is the upstream version? [1.5.1] gbp:info: Importing '../python-xrayutilities_1.5.1.orig.tar.gz' to branch 'upstream'... gbp:info: Source package is python-xrayutilities gbp:info: Upstream version is 1.5.1 Branch pristine-tar set up to track remote branch pristine-tar from origin. gbp:info: Merging to 'master' gbp:error: Automatic merge failed. gbp:error: Error detected, Will roll back changes. gbp:info: Rolling back branch upstream by resetting it to a6a78543327c683bda62802445a37132d18af730 gbp:info: Rolling back branch pristine-tar by deleting it gbp:info: Rolling back tag upstream/1.5.1 by deleting it gbp:info: Rolling back branch master by resetting it to c64c56e88836df1e54a8cd1926dfd621c3161254 gbp:info: Rolling back failed merge of upstream/1.5.1 gbp:error: Rolled back changes after import error. __________________________________________________________________________________________________________________________________________________________ Thanks for your time. Cheers, Alex