npm resolution error report

undefined

I’m happy to see this

undefined

@DownPW Sorry for late reply. But, thank you so much. All is working ok again

cd ~/nodebb
rm -rf node_modules
rm package-lock.json
npm cache clean --force
npm install

This worked perfectly. Much appreciated your help.

undefined

If you’re running the latest NodeBB version, then Node 21 and npm 10 are normally fine. Your error is most likely caused by a legacy dependency left over from an older install or from a plugin (probably something pulling grunt 0.3.x).

Modern NodeBB versions should not depend on old Grunt packages anymore, so something in your dependency tree is outdated.

What is probably happening

You likely have:

Latest NodeBB
Modern Node/npm
Old dependency still present

Usually caused by:

an old plugin
an upgrade from an older NodeBB version
a package.json that was never fully cleaned

Recommended clean fix

Do a clean reinstall of dependencies:

cd ~/nodebb
rm -rf node_modules
rm package-lock.json
npm cache clean --force
npm install

If it still fails

Try:

npm install --legacy-peer-deps

This is sometimes necessary when plugins have outdated peer dependencies.

Also check your installed plugins

Run:

./nodebb plugins

Often the issue comes from an outdated plugin (possibly nodebb-plugin-iframely since you were uninstalling it or other.

Reliable NodeBB admin fix procedure

A typical safe rebuild process:

./nodebb stop
rm -rf node_modules package-lock.json
npm install --legacy-peer-deps
./nodebb build
./nodebb start

if the problems persist maybe open a thread at nodebb communauty

undefined

@DownPW

Latest version of nodebb. Fresh install.

node is 21.7.3

npm is 10.9.1

undefined

DownPW said:

Which version of NodeBB do you have?

It doesn’t look like it’s recent, does it?

This error is caused by a Grunt version conflict.

It seems yiu currently uses grunt 0.3.17, but grunt-contrib-watch 0.4.4 requires grunt ~0.4.0. Modern npm versions (7+) are stricter with peer dependencies and will refuse to install conflicting versions.

undefined

@DownPW

npm install --legacy-peer-deps

I have tried already and still did not want to work.

npm uninstall nodebb-plugin-iframely --legacy-peer-deps

this got rid of iframely though.

undefined

Which version of NodeBB do you have?

It doesn’t look like it’s recent, does it?

This error is caused by a Grunt version conflict.

It seems yiu currently uses grunt 0.3.17, but grunt-contrib-watch 0.4.4 requires grunt ~0.4.0. Modern npm versions (7+) are stricter with peer dependencies and will refuse to install conflicting versions.

have you try to bypass the error (common with old NodeBB installs):

npm install --legacy-peer-deps

or in your case:

npm uninstall nodebb-plugin-iframely --legacy-peer-deps

Maybe @phenomlab can help too

undefined

@DownPW

The debug.

0 verbose cli /home/smiley/.nvm/versions/node/v21.7.3/bin/node /home/smiley/.nvm/versions/node/v21.7.3/bin/npm
1 info using npm@10.9.1
2 info using node@v21.7.3
3 silly config load:file:/home/smiley/.nvm/versions/node/v21.7.3/lib/node_modules/npm/npmrc
4 silly config load:file:/home/smiley/nodebb/.npmrc
5 silly config load:file:/home/smiley/.npmrc
6 silly config load:file:/home/smiley/.nvm/versions/node/v21.7.3/etc/npmrc
7 verbose title npm uninstall nodebb-plugin-iframely
8 verbose argv “uninstall” “nodebb-plugin-iframely” “–save”
9 verbose logfile logs-max:10 dir:/home/smiley/.npm/_logs/2026-03-15T10_02_42_147Z-
10 verbose logfile /home/smiley/.npm/_logs/2026-03-15T10_02_42_147Z-debug-0.log
11 silly logfile start cleaning logs, removing 1 files
12 silly logfile done cleaning log files
13 silly packumentCache heap:2197815296 maxSize:549453824 maxEntrySize:274726912
14 silly idealTree buildDeps
15 silly fetch manifest grunt@~0.4.0
16 silly packumentCache full:https://registry.npmjs.org/grunt cache-miss
17 http fetch GET 200 https://registry.npmjs.org/grunt 1238ms (cache revalidated)
18 silly packumentCache full:https://registry.npmjs.org/grunt set size:169561 disposed:false
19 verbose stack Error: could not resolve
19 verbose stack at PlaceDep.failPeerConflict (/home/smiley/.nvm/versions/node/v21.7.3/lib/node_modules/npm/node_modules/@npmcli/arborist/lib/place-dep.js:503:25)
19 verbose stack at new PlaceDep (/home/smiley/.nvm/versions/node/v21.7.3/lib/node_modules/npm/node_modules/@npmcli/arborist/lib/place-dep.js:157:21)
19 verbose stack at #buildDepStep (/home/smiley/.nvm/versions/node/v21.7.3/lib/node_modules/npm/node_modules/@npmcli/arborist/lib/arborist/build-ideal-tree.js:920:18)
19 verbose stack at async Arborist.buildIdealTree (/home/smiley/.nvm/versions/node/v21.7.3/lib/node_modules/npm/node_modules/@npmcli/arborist/lib/arborist/build-ideal-tree.js:181:7)
19 verbose stack at async Promise.all (index 1)
19 verbose stack at async Arborist.reify (/home/smiley/.nvm/versions/node/v21.7.3/lib/node_modules/npm/node_modules/@npmcli/arborist/lib/arborist/reify.js:131:5)
19 verbose stack at async Uninstall.exec (/home/smiley/.nvm/versions/node/v21.7.3/lib/node_modules/npm/lib/commands/uninstall.js:51:5)
19 verbose stack at async Npm.exec (/home/smiley/.nvm/versions/node/v21.7.3/lib/node_modules/npm/lib/npm.js:207:9)
19 verbose stack at async module.exports (/home/smiley/.nvm/versions/node/v21.7.3/lib/node_modules/npm/lib/cli/entry.js:74:5)
20 error code ERESOLVE
21 error ERESOLVE could not resolve
22 error
23 error While resolving: grunt-contrib-watch@0.4.4
23 error Found: grunt@0.3.17
23 error node_modules/grunt
23 error dev grunt@“^0.3.17” from the root project
23 error
23 error Could not resolve dependency:
23 error peer grunt@“~0.4.0” from grunt-contrib-watch@0.4.4
23 error node_modules/grunt-contrib-watch
23 error dev grunt-contrib-watch@“^0.4.4” from the root project
23 error
23 error Conflicting peer dependency: grunt@0.4.5
23 error node_modules/grunt
23 error peer grunt@“~0.4.0” from grunt-contrib-watch@0.4.4
23 error node_modules/grunt-contrib-watch
23 error dev grunt-contrib-watch@“^0.4.4” from the root project
23 error
23 error Fix the upstream dependency conflict, or retry
23 error this command with --force or --legacy-peer-deps
23 error to accept an incorrect (and potentially broken) dependency resolution.
24 error
24 error
24 error For a full report see:
24 error /home/smiley/.npm/_logs/2026-03-15T10_02_42_147Z-eresolve-report.txt
25 silly unfinished npm timer reify 1773568962435
26 silly unfinished npm timer reify:loadTrees 1773568962435
27 silly unfinished npm timer idealTree:buildDeps 1773568963186
28 silly unfinished npm timer idealTree:node_modules/grunt-contrib-watch 1773568963198
29 verbose cwd /home/smiley/nodebb
30 verbose os Linux 6.0.12-76060012-generic
31 verbose node v21.7.3
32 verbose npm v10.9.1
33 verbose exit 1
34 verbose code 1
35 error A complete log of this run can be found in: /home/smiley/.npm/_logs/2026-03-15T10_02_42_147Z-debug-0.log

undefined

@DownPW

npm resolution error report

While resolving: grunt-contrib-watch@0.4.4
Found: grunt@0.3.17
node_modules/grunt
dev grunt@“^0.3.17” from the root project

Could not resolve dependency:
peer grunt@“~0.4.0” from grunt-contrib-watch@0.4.4
node_modules/grunt-contrib-watch
dev grunt-contrib-watch@“^0.4.4” from the root project

Conflicting peer dependency: grunt@0.4.5
node_modules/grunt
peer grunt@“~0.4.0” from grunt-contrib-watch@0.4.4
node_modules/grunt-contrib-watch
dev grunt-contrib-watch@“^0.4.4” from the root project

Fix the upstream dependency conflict, or retry
this command with --force or --legacy-peer-deps
to accept an incorrect (and potentially broken) dependency resolution.

undefined

What is the error when you uninstall in nodebb log ?

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