Error response from daemon: Dockerfile parse error Unknown flag: mount

Question

There is a previous question (Docker Unknown flag --mount) facing the same error that was due to having an out-of-date version of Docker running. I have an up-to-date versio

Answer 1

The error message that you are getting due to writing --mount inside the Dockerfile. You have to enable Docker BuildKit first in order to use this syntax.

You can check all of the currently available build options through here