Update:
So, the project that I cannot completely create in Twitch Developer Rig, “exerciseTracker”, is showing up in my extension console at https://dev.twitch.tv/console/extensions. Can I do everything from that console that I could do with the Rig. I thought the only way to create a video overlay component was through Twitch Developer Rig.
Is that not true? I am still receiving that error on Step 1 in the rig but if I can get around the issue by creating everything in https://dev.twitch.tv/console/extensions, then I guess I’m fine. Any help is appreciated. Thanks.