Errors occurred during the build. Errors running builder 'CDI (Contexts and Dependency Injection) Builder' on project

Question

I get the below build error in Eclipse Oxygen whenver I try to edit the files and save the changes.

Building workspace has encountered a problem.
Errors occurred during build.

Errors occurred during the build.
Errors running builder 'CDI (Contexts and Dependency Injection) Builder' on project 'EmployeesManagementSystem'.
Unknown tag! pos=4 poolCount = 18

I have tried deleting the .metadata folder of the eclipse workspace(as suggested in other posts related to build error), but the error is still there.

Answer 1

It's possible that some of jar files in your local maven repository, which are used by your project, was not downloaded correctly or it's corrupted. You can:

1. try to clean your local maven repo by Maven > Update project > Check "Clean projects" and the project for which you apply clean action
2. disable it (if you don't need CDI Tools support) in Window > Preferences > JBoss Tools > Maven Intagration > Uncheck "CDI Facet" and then disable in Project Properties > CDI Settings > Uncheck "CDI Support" for your project as well

Answer 2

There is an error in: Window > Preferences > JBoss Tools > Maven Intagration > Uncheck "CDI Facet" It´s Window > Preferences > JBoss Tools > JBoss Maven Integration > Uncheck "CDI Facet" I lost various hours because that. Thanks anyway.