'npm ci' failed.

[DerickChang]

[INFO] Reactor Summary for CUB Practice 1.0.0-SNAPSHOT:
[INFO]
[INFO] CUB Practice ....................................... SUCCESS [ 0.592 s]
[INFO] CUB Practice - Core ................................ SUCCESS [ 10.226 s]
[INFO] CUB Practice - UI Frontend ......................... FAILURE [ 1.800 s]
[INFO] CUB Practice - Repository Structure Package ........ SKIPPED
[INFO] CUB Practice - UI apps ............................. SKIPPED
[INFO] CUB Practice - UI content .......................... SKIPPED
[INFO] CUB Practice - UI config ........................... SKIPPED
[INFO] CUB Practice - All ................................. SKIPPED
[INFO] CUB Practice - Integration Tests ................... SKIPPED
[INFO] CUB Practice - Dispatcher .......................... SKIPPED
[INFO] CUB Practice - UI Tests ............................ SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 15.977 s
[INFO] Finished at: 2024-12-02T16:14:18+08:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal com.github.eirslett:frontend-maven-plugin:1.12.0:npm (npm ci) on project cub.practice.ui.frontend: Failed to run task: 'npm ci' failed. org.apache.commons.exec.ExecuteException: Process exited with an error: 1 (Exit value: 1) -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
[ERROR]
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR] mvn <args> -rf :cub.practice.ui.frontend

I encountered this error when I wanted to package the project
I tried clearing the cache and also tried going directly to the UI Frontend folder and running the npm install command.

None of these methods work.

But npm provides other error messages.

PS C:\aem-test\cub.practice\ui.frontend> npm install
npm error code ERESOLVE
npm error ERESOLVE unable to resolve dependency tree
npm error
npm error While resolving: cub-practice@0.1.0
npm error Found: react@18.3.1
npm error node_modules/react
npm error react@"^18.2.0" from the root project
npm error
npm error Could not resolve dependency:
npm error peer react@"^16.14.0" from @adobe/aem-core-components-react-base@1.1.8
npm error node_modules/@adobe/aem-core-components-react-base
npm error @adobe/aem-core-components-react-base@"^1.1.8" from the root project

How can i fix it?

[PRATHYUSHA_VP]

Hi @DerickChang ,

Please re-check the node and npm versions installed in your system. This error has something to do with the installed version

Also check whether below versions match with your installed versions in POM.xml

If the above doesn't work, try reinstalling the node and npm versions

Hope this helps!

[Tethich · Accepted solution]

Hi @DerickChang 

This looks like a dependency tree issue. It means that while resolving cub-practice@0.1.0 it found react@"^18.2.0"

but it needed react@"^16.14.0". Try running your npm command with --force, or --legacy-peer-deps.

[kautuk_sahni]

@DerickChang Did you find the suggestion helpful? Please let us know if you require more information. Otherwise, please mark the answer as correct for posterity. If you've discovered a solution yourself, we would appreciate it if you could share it with the community. Thank you!