Hello, bro!
thanks for the feedback.
each video tutorial is corresponding to a specific Cocos Creator version, it’s too hard to keep it always works on a version newer than the made-version.
for better to learn the tutorial.
maybe you can follow the tutorial using the specific version of Cocos Creator which is used by the video.
then you can upgrade your project to a newer version of Cocos Creator if you want.
Luckily, we are working on some new tutorials based on the latest version of Cocos Creator, please stay tuned , they will coming soon.