Versions 20 and 19 don't install on Original Saga version of Baldur's Gate +TOTSC

[LeiFangBaby]

Tried installing on original (non-Extended) Baldur's Gate. It doesn't install and shows this error:

`[AjantisBG1/Friendship/Ajantis_friendship.baf] PARSE ERROR at line 137 column 8-52
Near Text: )
[AreaCheck] not found in TRIGGER.IDS

[AjantisBG1/Friendship/Ajantis_friendship.baf] ERROR at line 137 column 8-52
Near Text: )
Parsing.Parse_error
ERROR: parsing [AjantisBG1/Friendship/Ajantis_friendship.baf]: Parsing.Parse_error
Stopping installation because of error.
Stopping installation because of error.

ERROR Installing [Installs Ajantis BG1 Expansion Modification], rolling back to previous state
Will uninstall 991 files for [AJANTISBG1/SETUP-AJANTISBG1.TP2] component 0.
Uninstalled 991 files for [AJANTISBG1/SETUP-AJANTISBG1.TP2] component 0.
ERROR: Parsing.Parse_error
Please make a backup of the file: SETUP-AJANTISBG1.DEBUG and look for support at: Please post at G3 or Kerzenburgforum, refer to readme.
Using Language [English]`

I manually tried other versions of the mod from 14 and up and everything installed up to 18.3, but version 19 and newer didn't. Game version is The Original Saga 2.0.0.20 [Win] GOG. Tried a completely clean install just in case.

[Gitjas]

This install error should be fixed in v20.1.