Comment 2 for bug 1637883

i am able to build images with --tag using command like :

kolla-build -b ubuntu --tag 3.0.2

or
cd kolla
./tools/build.py --tag 3.0.1 --nocache

in attached logs, there is no option "--no-cache" . you should use option "--nocache".

i have tried with mitaka , newton and master everywhere it is working. please check again and post comment if same issue exist in your system.