NPM dependencies error on docker-composer up

Momentarily solved with RUN npm install --save --legacy-peer-deps to dockerfile
Building backend
Sending build context to Docker daemon    573MB
Step 1/6 : FROM node:15.4
 ---> 6f7f341ab8b8
Step 2/6 : WORKDIR /app
 ---> Using cache
 ---> ebc0dc9d5b9e
Step 3/6 : COPY package.json .
 ---> Using cache
 ---> f646795aa2f2
Step 4/6 : RUN npm install --force
 ---> Running in b96967663a6e
npm WARN using --force Recommended protections disabled.

npm notice 
npm notice New major version of npm available! 7.0.15 -> 8.1.4
npm notice Changelog: <https://github.com/npm/cli/releases/tag/v8.1.4>
npm notice Run `npm install -g npm@8.1.4` to update!
npm notice 
npm ERR! code ERESOLVE
npm ERR! ERESOLVE unable to resolve dependency tree
npm ERR! 
npm ERR! Found: acorn@7.4.1
npm ERR! node_modules/acorn
npm ERR!   acorn@"^7.4.0" from espree@7.3.1
npm ERR!   node_modules/espree
npm ERR!     espree@"^7.3.1" from eslint@7.32.0
npm ERR!     node_modules/eslint
npm ERR!       dev eslint@"^7.12.1" from the root project
npm ERR!       6 more (@typescript-eslint/eslint-plugin, ...)
npm ERR!     espree@"^7.3.0" from @eslint/eslintrc@0.4.3
npm ERR!     node_modules/@eslint/eslintrc
npm ERR!       @eslint/eslintrc@"^0.4.3" from eslint@7.32.0
npm ERR!       node_modules/eslint
npm ERR!         dev eslint@"^7.12.1" from the root project
npm ERR!         6 more (@typescript-eslint/eslint-plugin, ...)
npm ERR!   peer acorn@"^6.0.0 || ^7.0.0 || ^8.0.0" from acorn-jsx@5.3.2
npm ERR!   node_modules/acorn-jsx
npm ERR!     acorn-jsx@"^5.3.1" from espree@7.3.1
npm ERR!     node_modules/espree
npm ERR!       espree@"^7.3.1" from eslint@7.32.0
npm ERR!       node_modules/eslint
npm ERR!         dev eslint@"^7.12.1" from the root project
npm ERR!         6 more (@typescript-eslint/eslint-plugin, ...)
npm ERR!       1 more (@eslint/eslintrc)
npm ERR!   2 more (acorn-globals, is-expression)
npm ERR! 
npm ERR! Could not resolve dependency:
npm ERR! peerOptional acorn@"^8.5.0" from terser@5.10.0
npm ERR! node_modules/terser
npm ERR!   terser@"^5.7.2" from terser-webpack-plugin@5.2.5
npm ERR!   node_modules/terser-webpack-plugin
npm ERR!     terser-webpack-plugin@"^5.1.1" from webpack@5.28.0
npm ERR!     node_modules/@nestjs/cli/node_modules/webpack
npm ERR!       webpack@"5.28.0" from @nestjs/cli@7.6.0
npm ERR!       node_modules/@nestjs/cli
npm ERR!     1 more (webpack)
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 /root/.npm/eresolve-report.txt for a full report.

npm ERR! A complete log of this run can be found in:
npm ERR!     /root/.npm/_logs/2021-11-21T09_52_27_161Z-debug.log
The command '/bin/sh -c npm install --force' returned a non-zero code: 1
ERROR: Service 'backend' failed to build : Build failed
antoniopapa / nest-ambassador

NPM dependencies error on docker-composer up #2
