This memo is to remind everyone when iMovie generates error “username or password is incorrect” while uploading to Youtube from iMovie.
Error: “username or password is incorrect”
Please try the following 2 steps. Everythings worked fine to me after #1 only.
1. Go to URL below(Google page) and turn on “Access for less secure apps”.
That’s all. After this, It worked fine for me.
2. Try to login by Gmail address and Gmail password.
If you have already linked Youtube account with Gmail account, try to login by Gmail account email and password.
If error occurs even after step1&2, try to google other cases. In my knowledge, these 2 steps fix most of errors.