I have been successfully running OSMC from my Raspberry Pi 2 for some months now. Several updates were performed. Current version is 17.1 (March 22, 2017)
After a message that there updates available, I pressed yes to perform the update.
The downloads started and the update after that. After a certain moment the update stopped with the above errormessage. The message says to report to this forum.
Any suggestions on how to continue with a succesfull upgrade?
I've tried several times, both starting from an automated update message and a manual action. Same result.