Room auto migration: Migration didn't properly handle:

I am using room library in my app. I added new column in my entity witch holds list of object. Room can't after migrate this entity. In android studio I got error message Migration didn't properly handle: EntityName. Android studio returns two type of table expected and found. In found table I did't find my new column. I am using room 2.4.3 this version is supporting auto migrate but doesn't work