[FIXED] npm install fails (unable to resolve dependency tree)

Issue

Trying to reduce any changing variables and using a fresh pull of my code. They are no node-module packages or package-lock.json. I run npm install I get this error:

npm ERR! code ERESOLVE
npm ERR! ERESOLVE unable to resolve dependency tree
npm ERR!
npm ERR! While resolving: undefined@undefined
npm ERR! Found: react-native-screens@2.15.2
npm ERR! node_modules/react-native-screens
npm ERR!   react-native-screens@"~2.15.0" from the root project
npm ERR!
npm ERR! Could not resolve dependency:
npm ERR! peer react-native-screens@"^1.0.0 || ^1.0.0-alpha" from react-navigation-drawer@1.4.0
npm ERR! node_modules/react-navigation-drawer
npm ERR!   react-navigation-drawer@"^1.4.0" 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 /Users/myname/.npm/eresolve-report.txt for a full report.

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/myname/.npm/_logs/2021-05-22T01_16_02_351Z-debug.log

If I do an install via --force or npm install --legacy-peer-deps I get a bunch of files mark as outdated and when I run npm update I get the same error. I have tried clearning the cache of my npm as well with no luck npm cache clean. I don’t know why this is happening as there is no node-module folder or anything installed for it to give error under my node_modules/react-native-screens…they are no node_modules folder yet. What is causing this and how can I fix it?

Edit:
I ran npm update -g , then npm audit fix and then I got an error:

code ERESOLVE
ERESOLVE unable to resolve dependency tree

While resolving: Sculp latest app@undefined
Found: react-native-screens@2.15.2
node_modules/react-native-screens
react-native-screens@“~2.15.0” from the root project

so I ran expo install react-native-screens and saw that it couldn’t find expo…checked my folder and my node_module folder is missing. Like if it never was there or gotten installed.

edit:
I have tried all the methods listed below and it gives random errors that I can not fix it undefined is not an object (evaluating ‘_core.ThemeColors.light’) and I have googled this and one of the main solutions is delete npm and package-lock.json and reinstall but that brings me back to where I started.

Solution

It works for me:

npm install --save --legacy-peer-deps

Answered By – Phuc Nguyen

Answer Checked By – Mildred Charles (Easybugfix Admin)

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