[Solved]-How create a react app with a specific version using the npx command?-Reactjs

some packages may use a different name for the package and the tool, causing some forms of the version specifier to fail when the plain command works:

$ npx uglifyjs --version
uglify-js 3.14.4

$ npx uglifyjs@3.10.0 --version
npm err! code etarget
npm err! notarget no matching version found for uglifyjs@3.10.0.
npm err! notarget in most cases you or one of your dependencies are requesting
npm err! notarget a package version that doesn't exist.
[..]
install for [ 'uglifyjs@3.10.0' ] failed with code 1

in this case, using -p / --package, or specifying the package name instead, will allow npx to work as expected:

$ npx --package uglify-js@3.10.0 uglifyjs --version
npx: installed 1 in 0.631s
uglify-js 3.10.0

$ npx uglify-js@3.10.0 --version
npx: installed 1 in 0.524s
uglify-js 3.10.0
undefined

(nb: the first npx uglifyjs only works when inside a project that has had uglify-js added to the package.json file.)