Hello, I am using osc from Unstable, and I keep getting the same message on some packages when I run osc setlinkrev KDE:Release:45 with cln, for instance. Any ideas why is this happening? Thanks, Javier setting revision for package cln Traceback (most recent call last): File "/usr/bin/osc", line 21, in <module> r = babysitter.run(osccli) File "/usr/lib/python2.6/site-packages/osc/babysitter.py", line 50, in run return prg.main() File "/usr/lib/python2.6/site-packages/osc/cmdln.py", line 309, in main return self.cmd(args) File "/usr/lib/python2.6/site-packages/osc/cmdln.py", line 332, in cmd retval = self.onecmd(argv) File "/usr/lib/python2.6/site-packages/osc/cmdln.py", line 448, in onecmd return self._dispatch_cmd(handler, argv) File "/usr/lib/python2.6/site-packages/osc/cmdln.py", line 1178, in _dispatch_cmd return handler(argv[0], opts, *args) File "/usr/lib/python2.6/site-packages/osc/commandline.py", line 1941, in do_setlinkrev set_link_rev(apiurl, project, p, revision = rev, use_xsrcmd5 = use_xsrcmd5, use_baserev = use_baserev) File "/usr/lib/python2.6/site-packages/osc/core.py", line 4971, in set_link_rev l = ET.tostring(root) File "/usr/lib64/python2.6/xml/etree/ElementTree.py", line 1009, in tostring ElementTree(element).write(file, encoding) File "/usr/lib64/python2.6/xml/etree/ElementTree.py", line 663, in write self._write(file, self._root, encoding, {}) File "/usr/lib64/python2.6/xml/etree/ElementTree.py", line 698, in _write _escape_attrib(v, encoding))) File "/usr/lib64/python2.6/xml/etree/ElementTree.py", line 830, in _escape_attrib _raise_serialization_error(text) File "/usr/lib64/python2.6/xml/etree/ElementTree.py", line 777, in _raise_serialization_error "cannot serialize %r (type %s)" % (text, type(text).__name__) TypeError: cannot serialize None (type NoneType) -- Javier Llorente