I got a resolution after i went to UiPath directly. As with many error messages i have experienced; the resolution seems somewhat/totally unrelated to the message you get.
Below is the response i got:
“System error: Licence error: You need to be registered at Source: UiPath.UiAutomation.Activities”
This issue usually occurs on Studio v2018.3.2 and above, when executing projects that are using the 18.3.6864.20582 version of the
If you have projects created with Studio v2018.3.1 which were using the
UiPath.UIAutomation.Activities dependency version 18.3.6864.20582 you must open them in Studio and the
UiPath.UIAutomation.Activities dependency must be updated to the 18.3.6877.28298 version.
Please note : If you ever installed other 2018.3 versions than the Enterprise Studio v2018.3.1 edition (eg. Community Stable v2018.3.0 or any prior beta versions for both Enterprise and Community), the above applies as well. Do not use any
UiPath.UIAutomation.Activities with version less or equal than 18.3.6864.20582 and
UiPath.Core.Activities with version less or equal than 2018.3.6864.20598.
Please feel free to create a new Technical Support ticket for any further issues, we will be glad to assist you.