topic Re: Unable to build AMP through Maven. in Alfresco Forum

Unable to build AMP through Maven.

Syedjunaid — Fri, 04 Dec 2020 11:55:48 GMT

Hello everyone,

I am trying to build an amp through maven but the problem is Im getting the below error. Did some research, found that I have to downgrade my java's jdk version from 8 to 6. Now the problem is Debian (linux) doesn't support jdk 1.6 or lower than it.

Does anyone know any alternative solution for this problem.

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.0:compile (default-compile) on project userreports-platform: Compilation failure
[ERROR] /home/junaid/userreports/userreports-platform/src/main/java/com/virtuosoft/userreports/platformsample/DemoComponent.java:[22,43] cannot access org.alfresco.service.cmr.repository.NodeRef
[ERROR]   bad class file: /home/junaid/.m2/repository/org/alfresco/alfresco-data-model/8.50.1/alfresco-data-model-8.50.1.jar(org/alfresco/service/cmr/repository/NodeRef.class)
[ERROR]     class file has wrong version 55.0, should be 52.0
[ERROR]     Please remove or make sure it appears in the correct subdirectory of the classpath.

Regards,

Syed Junaid Hussain.

Re: Unable to build AMP through Maven.

abbask01 — Fri, 04 Dec 2020 12:57:02 GMT

You need to "upgrade" your java version to 11. try openJDK 11. then recompile with maven

Hope it helps.

Re: Unable to build AMP through Maven.

Syedjunaid — Mon, 07 Dec 2020 11:23:21 GMT

Dear @abbask01 ,

Thanks for the suggestion, I just removed jdk 8 and installed jdk 11 and then the project was built succesfully and my amp was created. Thanks again !

Re: Unable to build AMP through Maven.

EddieMay — Mon, 07 Dec 2020 17:53:05 GMT

Hi @Syedjunaid

Great that your issue is solved & thanks for accepting the solution & reporting back.

Best wishes,