
"Robot Virtual Worlds level builder" feature not installed
Hi, I am using a trial version of robotC version 4.50.
I was unable to use the level builder as it keep showing "Robot Virtual Worlds level builder" feature is not currently installed" like the image below :

I have all the trial license added and still not work~ below is the image of my installed software:

please tell me what is the steps I have missed out in order to use the level builder, thank you very much!