Starting a project with VEXcode 123 can be completed in just three steps.
First, save the project.
Note: if using a Web-based version of VEXcode 123, the 'Saved' indicator will not show in the Toolbar. View the Loading and Saving VEXcode 123 Projects on a Chrome Browser article for more information on how to save Web-based VEXcode 123 projects.
Next, connect the device to the 123 Robot and check that the Robot icon is green in the Toolbar.
Finally, select ‘START’ to start running the project.