npm install npm@6.14.10 -g

npm ERR! code ERESOLVE
npm ERR! ERESOLVE unable to resolve dependency tree
npm ERR!
npm ERR! Found: @babel/core@7.0.0
npm ERR! node_modules/@babel/core
npm ERR!   dev @babel/core@"7.0.0" from the root project
npm ERR!   peer @babel/core@"^7.0.0-0" from @babel/register@7.0.0
npm ERR!   node_modules/@babel/register
npm ERR
 
!     dev @babel/register@"7.0.0" from the root project
npm ERR!   61 more (@vue/cli-plugin-babel, babel-core, babel-loader, ...)
npm ERR!
npm ERR! Could not resolve dependency:
npm ERR! peer @babel/core@"^7.4.0-0" from @babel/helper-define-polyfill-provider@0.2.3
npm ERR! node_modules/babel-plugin-polyfill-corejs2/node_modules/@babel/helper-define-polyfill-provider
npm ERR
 
!   @babel/helper-define-polyfill-provider@"^0.2.2" from babel-plugin-polyfill-corejs2@0.2.2
npm ERR!   node_modules/babel-plugin-polyfill-corejs2
npm ERR!     babel-plugin-polyfill-corejs2@"^0.2.2" from @babel/plugin-transform-runtime@7.14.5
npm ERR!     node_modules/@babel/plugin-transform-runtime
npm ERR
 
!       @babel/plugin-transform-runtime@"^7.4.0" from @vue/babel-preset-app@3.12.1
npm ERR!       node_modules/@vue/babel-preset-app
npm ERR!
npm ERR! Fix the upstream dependency conflict, or retry
npm ERR! this command with --force, or --legacy-peer-deps
npm ERR! to accept an incorrect (and potentially broken) dependency resolution.
npm ERR!
npm ERR! See C:\Users\Administrator\AppData\Local\npm-cache\eresolve-report.txt for a full report.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\Administrator\AppData\Local\npm-cache\_logs\2021-06-16T07_39_31_283Z-debug.log