Strangely enough, I now systematically get this error message (but with vertical instead of horizontal, and value after index is 15), when I click the arrow next to the open button of the Lazarus IDE.
It seems to appear after I installed some packages (MQTT and its dependencies namely), that I hasted to remove and rebuilt IDE... but still present.
Maybe the problem was not coming from the installed packages...
But from where could it come?
Thanks for any suggestion...
jyl