Created attachment 1050654 [details] screenshot Description of problem: Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: 1. In virt-manager create new VM from local install media, choose path to some ISO 2. Uncheck "Automatically detect operating system based on install media" 3. Choose OS type: UNIX (first select "Show all OS options" then choose "UNIX") pick any version. 4. Check "Automatically detect ..." again 5. Uncheck it again (Version will now be blank) 6. Click "> Forward" Actual results: Blank version cause a python exception to be shown with the exceedingly unhelpful message: Error setting installer parameters. cannot concatenate 'str' and 'exceptions.ValueError' objects Expected results: An error with more context, maybe pointing out that Version cannot be left blank. Or alternatively, don't forget the previously selected value for the Version field blank after checking/unchecking the "Automatically detect..." checkbox.
Thanks for the simple reproducer! Fixed upstream now: commit cca72a73c496b715bc90ee277291d0cbcf6d1771 Author: Cole Robinson <crobinso> Date: Mon Aug 10 12:56:11 2015 -0400 create: Fix backtrace when reporting OS error (bz 1241902)
virt-manager-1.2.1-2.fc22 has been submitted as an update for Fedora 22. https://admin.fedoraproject.org/updates/virt-manager-1.2.1-2.fc22
Package virt-manager-1.2.1-2.fc22: * should fix your issue, * was pushed to the Fedora 22 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing virt-manager-1.2.1-2.fc22' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2015-13390/virt-manager-1.2.1-2.fc22 then log in and leave karma (feedback).
virt-manager-1.2.1-2.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.