I am new to OmegaT (Ubuntu), and I wish to add Taas functionality.
I have created a key on the Taas web site, but I don't know how to "give OmegaT" the key.
It says I need to give it with -Dtaas.user.key=xxxxx, but after trying modifying the omegat.kaptn file, I am getting the same error message.
Are you using Kaptain to launch OmegaT?
If yes, there is perhaps an issue with the way you entered data.
If not, it's useless to modify omegat.kaptn, you have to enter your information in your launcher script (e.g., the "OmegaT" script).