java.lang.IllegalArgumentException: already added: Lorg/hamcrest/BaseDescription; Conversion to Dalvik format failed with error 1

Question

First of all, there are at least 2 postings with the same problem but these solutions don\'t work anymore, at least not in my installation.

I\'m using m2e with Eclip

Answer 1

Unfortunately Eclipse does not understand the maven test scope. It pulls hamcrest classes into the build with JUnit 4.10. Use JUnit 4.8.1 or, if you really need to use 4.10+ version of JUnit, you can use a maven profile without the junit dep in eclipse.

1. Include the JUnit dep in the default profile and create an empty 'no-junit' profile (see example pom below)
2. Eclipse project properties > Maven > Active Maven Profiles: no-junit
3. Manually add the junit library to the eclipse Build path of your project

Here is the relevant part of the pom.xml:

    
        default
        
            true
        
        
            
                junit
                junit
                4.10
                test
            
        
    
    
        no-junit