npm install installs dependencies and reports error Host key verification failed

1.  Set git identity and email

   git config --global user.name "你的名字"	 	 ====> 用户名
   git config --global user.email “你的邮箱"   ====> 邮箱
   

2. Enter => User => [your user name] => .s sh folder , delete the known_hosts file and
   you may see the known_hosts_old file after entering, but ignore it, just delete the known_hosts directly, and then start Configure git
3. $ ssh-keygen -t rsa -C "[email protected]"    
4. It will appear after executing the previous link. Just press Enter twice.

   Generating public/private rsa key pair.
   Enter file in which to save the key (/Users/your_user_directory/.ssh/id_rsa):
   

5. 
6. Copy the contents of the "id_rsa.pub" file in the user->[your username]->.ssh folder and save it.
   Enter the command in the command line:

   ssh -T [email protected]
   

7.  

   

8. Just enter yes and press Enter, and finally execute it again

9. npm install