npm ERR! code ERESOLVE npm ERR! ERESOLVE could not resolve npm ERR! While resolving: @nestjs/mongoose@8.0.1

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While installing node_modules, I use the --legacy-peer-deps or --force flags. This works fine on windows on my system locally, but it doesn't work while deploying the project in ubuntu server!

This is the error I get:

npm ERR! code ERESOLVE
npm ERR! ERESOLVE could not resolve
npm ERR! 
npm ERR! While resolving: @nestjs/mongoose@8.0.1
npm ERR! Found: mongoose@6.0.1
npm ERR! node_modules/mongoose
npm ERR!   mongoose@"6.0.1" from the root project
npm ERR!   mongoose@"*" from @types/mongoose@5.11.96
npm ERR!   node_modules/@types/mongoose
npm ERR!     dev @types/mongoose@"5.11.96" from the root project
npm ERR!
npm ERR! Could not resolve dependency:
npm ERR! peer mongoose@"^5.11.15 || ^5.12.4" from @nestjs/mongoose@8.0.1
npm ERR! node_modules/@nestjs/mongoose
npm ERR!
npm ERR! Conflicting peer dependency: mongoose@5.13.14
npm ERR! node_modules/mongoose
npm ERR!   peer mongoose@"^5.11.15 || ^5.12.4" from @nestjs/mongoose@8.0.1
npm ERR!   node_modules/@nestjs/mongoose
npm ERR!     @nestjs/mongoose@"8.0.1" from the root project
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\Admin\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\Admin\AppData\Local\npm-cache\_logs\2022-06-14T08_44_12_502Z-debug-0.log
1 Answers

It means you have dependency conflicts. So try running the following options one by one.

  1. Remove node_modules and package-lock.json and then run

    npm install
    
  2. Or try clearing out npm cache

    npm cache clean --force
    
  3. Or run the command with the --legacy-peer-deps option

    npm install --legacy-peer-deps
    
  4. Or run the command with the --force option

    npm install --force
    
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