javascript - npm installation error, system w7, please give me an answer

Question

Answer 1

The certificate verification of your npm source failed.

Possible reasons:

1. The npm source you are using does not support the default https protocol, or there is a problem with the https certificate.

2. The certificate store of your system has expired.

3. If you are using foreign sources, you will know about network problems.

Solution:

1. Replace npm source, you can choose domestic source

2. Use windows update to install win7 system patch (only for reason 2)

3. (you know)

4. Executenpm config set strict-ssl false Skip npm’s certificate detection

Answer 2

--Does global have this parameter? Shouldn't it be -g? Install globally