im getting this error when trying to open hearthfire in the creation kit ''Asert"

File: C:\_Skyrim\Code|TESV\TES Shared\misc\BGSLocalizedString.cpp

Line: 2871

LOCALIZATION: Error opening or reading strings file

im trying to add a room to my lakeview manor but cant open it

does anyone know what i can do to fix this please

any help is much apprieciated thx

FIXED PROBLEM by adding a line in the skyrimeditor.ini file under [Archive]

just add this'' SResourceArchiveList2=Skyrim - Shaders.bsa, Update.bsa, Dawnguard.bsa, Dragonborn.bsa, HearthFires.bsa ''

and under [General] add this ''bAllowMultipleMasterLoads=1''

and under [General] add this ''bAllowMultipleMasterLoads=1'