Since NPM and cnpm have been used together before, there is no problem. Today, when starting the Vue project, I encountered an error “NPM” ERR! code “Elifecycle” was initially used with NPM Run started and later changed to cnpm Neither can run. 
After checking the information, it is mostly said on the Internet that it is because of node_ There is a problem with the installation of modules. The basic solution is to clear the cache and reinstall.
The following steps are summarized:
1、npm cache clean — force
2、rm – rf node_ modules
3、rm – rf Package-lock.json (optional)
4、npm install
Read More:
- Cannot find module ‘lodash’
- The solution of NPM err! Code elifecycle
- Solution of NPM err! Code elifecycle
- error Unable to authenticate, need: BASIC realm=“Sonatype Nexus Repository Manager“
- On the use of NPM cache clean — force
- Error: EBUSY: resource busy or locked
- NPM report error: eperm: operation not permitted, unlink… Solution and clear cache_ modules
- Some mistakes in using NPM
- Command failed: NPM install — loglevel error — registry= https://registry.npm.taobao.org
- error This is probably not a problem with npm. There is likely additional logging output above.
- Error: Cannot find module ‘process-nextick-args’
- Error code elifecycle errorno when NPM install command is executed in Vue project
- NPM installs dependent packages and reports an error node gyp rebuild… Solution
- NPM and cnpm installation failure solution
- [Vue] install vuex, error: eperm: operation not permitted, rename
- On NPM audit fix
- ERROR: command failed: npm install –loglevel error
- Gulp failed to run
- [Solved] ERROR Failed to compile with 3 errors These dependencies were not found: * pdfjs-dist/es5/buil
- Vue — run ‘NPM audit fix’ to fix them, or ‘NPM audit’ for details appears when initializing the installation