Unable to find main dictionary. Could not start speller | AutoCAD Error!

Here are some reasons why you get the message
“Unable to find main dictionary. Could not start speller.” or
“Unable to find main dictionary Could not start spelling”
in AutoCAD (or vertical) or AutoCAD LT when you try to add or change text or make a spell check.




You have deleted some DCT files in your support folder and might need to restore them from the DVD alternatively make a repair of the installation.


Make sure to install dictionaries as feature if you select a custom installation. Even if you don't need multi-language dictionaries you will get an annoying error message every time you want to create or edit text. "AutoCAD Message - Unable to find main dictionary. Could not start speller."

You might have deleted the path to the location of the DCT files in OPTIONS. You can check that you have the path to where the DCT file are among the paths in
Options > Files >Support File Search Path
If it is not there add it and restart the application. Another way is to restore the profile but then you might lose a lot of your settings that you have customized.

Here are some of the DCT files that comes with AutoCAD:
cat.dct
csy.dct
dan.dct
dan2.dct
deu.dct
deu2.dct
deuo2.dct
enc.dct
enc2.dct
eng.dct
eng2.dct
enu.dct
enu2.dct
esp.dct
esp2.dct
fin.dct
fin2.dct
fra.dct
fra2.dct
ita.dct
ita2.dct
nld.dct
nld2.dct
nor.dct
nor2.dct
ptb.dct
ptb2.dct
ptg.dct
ptg2.dct
rus.dct
sve.dct
sve2.dct


Hope this troubleshooting will help you, Please post your feedback on the comment section below