I tried removing the quick mask in the channel side bar and also uncheck "edit in quick mask mode" but I still cannot stop the pop up saying "Could not use move tool because the target channel is hidden". I cannot draw any objects or move them. What should I do?
You are getting an error because you are in "Quick mask edit mode". There are few ways to exit. You can, for example, use [Q] button or delete layer as well.
All have been listed on blog.i-evaluation.com, article: “Could not use move tool because the target channel is hidden” – Photoshop Warning
Hope that helps!
ps. My first post on adobe forum. Hope I helped someone.