I recently upgraded to 11.2. I wanted to create new plugins and migrate over from my previous jails. However at the first step where I activate a pool or dataset for jail storage it just spins forever. How can I diagnose this?

I have tried a couple of times to upgrade my system from 9.10.2u6 to 11.1 and each time it fails with the GUI showing 'unable to activate clone environment 11.1-Release'. The full set of errors from the console are included below for completeness but the error starts with: Jan 1 12:25:53...