npm run build packaging command cp is not an internal command. It was available before, but it can"t be used recently
there is no problem with npm run start, but I don"t know what went wrong when copying files when I finally packed the package
/ / Please paste the code text below (do not replace the code with pictures)
cp cannot be used in cmd, so change individual terminals.
windows copy commands are copy rather than cp.
you need to make sure that your commands are cross-platform
cp commands cannot be executed in cmd under window.
it is recommended to switch to git bash terminals
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