I would recommend to switch to the newest release. Since the version 1.18 of ctrlX WORKS, we provide a workaround for this problem. See the new error-message:
The workaround is to download the SDK form the link @CodeShepherd already shared. Please download the full repository (marked red in my screenshot). Then copy it to the home directory of your build environment and restart the script.
Best regards,
Nick
... View more