Vue project installation core-js error solution

The problem of error reporting is as follows:

the version of core-js that occurs in this situation is mostly wrong;
the solution is as follows, and the personal test is effective for many times:
1. Install cnpm

npm install -g cnpm --registry=https://registry.npm.taobao.org

2. Check whether cnpm is available

cnpm -v

3. Re-download the version of core-js

cnpm install core-js@2

OK, that's it, End~