training when barracks are upgrading

It gets annoying when you can't train on a barrack that is upgrading why can't it be like cc

Use the search function before posting you ideas. This has been suggested tons of times and has already been denied by SuperCell and many other players alike.

Dude, its like that for a reason, its annoying but its there to make it harder to upgrade, or youd have those Pekkas and Dragons too easily