flutter升級遇到的問題:
Your flutter checkout has local changes that would be erased by upgrading. If
you want to keep these changes, it is recommended that you stash them via "git
stash" or else commit the changes to a local branch. If it is okay to remove
local changes, then re-run this command with --force.
根據(jù)最后一句提示:
終端:flutter upgrade --force