I have updated my Pyanodon mods and now I have trouble opening my saved game. The error message is:

Error while applying migration: Pyanodons AlienLife: 2.0.7.lua

pyalienlife/migrations/2.0.7.lua:2: attempt to get length of field 'indexed_farm_list' (a nil value)
stack traceback:
pyalienlife/migrations/2.0.7.lua:2: in main chunk

Is there anything that can be done?

Fixed by commenting-out the second line of pyalienlife_2.0.8/migrations/2.0.7.lua:

-- game.print('pYAL: Migrated ' .. #global.indexed_farm_list .. ' farm buildings')

Will be fixed for the next release

I just got a similar issue after the 2.1.5 update. And the comment trick above doesn't seem to fix it.

Error reads:

Error while applying migration: Pyanodons AlienLife: 2.0.7.lua

An interface already exists under with name: pyfarm
stack traceback:
[C]: in function 'add_interface'
pyalienlife/scripts/farming/farming.lua:35: in main chunk
[C]: in function 'require'
pyalienlife/migrations/2.0.7.lua:6: in main chunk