Error when installing DSpace 10.0 frontend

[Lewatle Johannes Phaladi]

Hi All DSpace Tech,

I am getting the following error:

dspace-angular-dspace-10.0$ npm install
npm error code ERESOLVE
npm error ERESOLVE could not resolve
npm error
npm error While resolving: @mui/icons-m...@7.3.11
npm error Found: re...@16.14.0
npm error node_modules/react
npm error   peer react@">=16" from @custom-react-hooks/use-elem...@1.5.1
npm error   node_modules/@custom-react-hooks/use-element-size
npm error     @custom-react-hooks/use-element-size@"^1.5.1" from mir...@4.0.0
npm error     node_modules/mirador
npm error       mirador@"^4.0.0" from the root project
npm error       2 more (mirador-dl-plugin, mirador-share-plugin)
npm error   peer react@">=16.8.0" from @emotion/re...@11.14.0
npm error   node_modules/@emotion/react
npm error     peer @emotion/react@"^11.0.0-rc.0" from @emotion/sty...@11.14.1
npm error     node_modules/@emotion/styled
npm error       peerOptional @emotion/styled@"^11.3.0" from @mui/mate...@7.3.11
npm error       node_modules/@mui/material
npm error         peer @mui/material@"^7.3.11" from @mui/icons-m...@7.3.11
npm error         node_modules/@mui/icons-material
npm error         4 more (mirador, mirador-dl-plugin, mirador-share-plugin, @mui/x-tree-view)
npm error       6 more (@mui/system, @mui/styled-engine, mirador, ...)
npm error     peerOptional @emotion/react@"^11.5.0" from @mui/mate...@7.3.11
npm error     node_modules/@mui/material
npm error       peer @mui/material@"^7.3.11" from @mui/icons-m...@7.3.11
npm error       node_modules/@mui/icons-material
npm error         @mui/icons-material@"^7.0.0" from mir...@4.0.0
npm error         node_modules/mirador
npm error         1 more (mirador-share-plugin)
npm error       4 more (mirador, mirador-dl-plugin, mirador-share-plugin, @mui/x-tree-view)
npm error     6 more (@mui/system, @mui/styled-engine, mirador, ...)
npm error   27 more (@emotion/styled, ...)
npm error
npm error Could not resolve dependency:
npm error peer react@"^17.0.0 || ^18.0.0 || ^19.0.0" from @mui/icons-m...@7.3.11
npm error node_modules/@mui/icons-material
npm error   @mui/icons-material@"^7.0.0" from mir...@4.0.0
npm error   node_modules/mirador
npm error     mirador@"^4.0.0" from the root project
npm error     2 more (mirador-dl-plugin, mirador-share-plugin)
npm error   peer @mui/icons-material@"^7.0.0" from mirador-sh...@1.0.0
npm error   node_modules/mirador-share-plugin
npm error     mirador-share-plugin@"^1.0.0" from the root project
npm error
npm error Conflicting peer dependency: re...@19.2.7
npm error node_modules/react
npm error   peer react@"^17.0.0 || ^18.0.0 || ^19.0.0" from @mui/icons-m...@7.3.11
npm error   node_modules/@mui/icons-material
npm error     @mui/icons-material@"^7.0.0" from mir...@4.0.0
npm error     node_modules/mirador
npm error       mirador@"^4.0.0" from the root project
npm error       2 more (mirador-dl-plugin, mirador-share-plugin)
npm error     peer @mui/icons-material@"^7.0.0" from mirador-sh...@1.0.0
npm error     node_modules/mirador-share-plugin
npm error       mirador-share-plugin@"^1.0.0" from the root project
npm error
npm error Fix the upstream dependency conflict, or retry this command with --force or --legacy-peer-deps to accept an incorrect (and potentially broken) dependency resolution.
npm error
npm error
npm error For a full report see:
npm error /dspace/.npm/_logs/2026-06-18T12_31_52_517Z-eresolve-report.txt
npm error A complete log of this run can be found in: /dspace/.npm/_logs/2026-06-18T12_31_52_517Z-debug-0.log

May you help where to adjust.

Regards,

Lewatle 

[Bold T Ncube]

Hi Lewatle, 

What node version are you using? It might be a node version issue

Kind regards,

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[Kevon Muhoozi]

What are the versions of npm and node are you running on your machine?

[Lewatle Johannes Phaladi]

Hello Kevon,

I am using the following versions :

$ node -v
v24.16.0

$ nodejs -v
v24.16.0

$ npm -v
11.13.0

Regards,

Lewatle 

[Bold T Ncube]

Kindly try using node v22.x

To view this discussion visit https://groups.google.com/d/msgid/dspace-tech/156d9ef4-66cd-4b98-93be-096f7699d9dan%40googlegroups.com.

[Kevon Muhoozi]

Downgrade your npm version to 10.9.4

To view this discussion visit https://groups.google.com/d/msgid/dspace-tech/156d9ef4-66cd-4b98-93be-096f7699d9dan%40googlegroups.com.

[Kevon Muhoozi]

These errors are not caused by node version but instead they are usually because of the node package manager npm to fail import legacy packages.

To view this discussion visit https://groups.google.com/d/msgid/dspace-tech/CAMMUn6hr94JvKQhGCYBmhiyMbXNEE-3_CuWhfNDLF2SJGuPGaA%40mail.gmail.com.

[Lewatle Johannes Phaladi]

Hello Bold,

I have downgraded node to version 22,  but still getting error when installing frontend.

$ node -v
v22.23.0

Regards,

Lewatle 

[Kevon Muhoozi]

Hello Lewatle!
Use this: npm install -g n...@10.9.4 to install a supported version of npm for the packages.
Please don't run npm fix audit; these errors often occur when you try to fix the warnings.
And also you go ahead to allow npm to install the legacy dependencies with  npm install --legacy-peer-deps
The step you are at is to install dependencies to support your frontend build.
Also, for clear support, provide this output: "cat  /dspace/.npm/_logs/2026-06-18T12_31_52_517Z-eresolve-report.txt"

To view this discussion visit https://groups.google.com/d/msgid/dspace-tech/20f52260-232c-4fbe-af72-08c68bcb83b0n%40googlegroups.com.

[Alfeu Uzai Tavares]

Hello Lewatle,

I had similar dependency problems when upgrading from 9.2 to 10.0 due to other npm dependencies I had installed in the project, used in custom code.

To fix it, I deleted the node_modules folder and replaced files package.json and package-lock.json with default ones from the DSpace version being used. 

After that, I re-installed the other packages with npm install <package-name>, and then performed the npm install of the project. This fixed all problems.

I'm using node --version: v24.12.0 and npm --version: 10.9.8.

To view this discussion visit https://groups.google.com/d/msgid/dspace-tech/CA%2BLKazpacKVsLrB1-WDY-9TVo_TRwi%3Dh5_BJGEGkSWe7krjOBg%40mail.gmail.com.

[Lewatle Johannes Phaladi]

Hello Alfeu,

Thanks a lot for sharing the steps, I will try on my side and come back with feedback.

Regards,

Lewatle