Multiple dex files define Lorg/apache/cordova/BuildHelper

Question

I\'m in trouble since yesterday. In my internship I faced the following build error, but I couldn\'t understand why :

$ cordova build android

[...]

FAILURE         


        

Answer 1

None of the above solutions worked for me. For me the solution was upgrading gradle. I was using gradle 5.6.2. Updating to 5.6.4 then removing and adding my android platform and plugins did the trick.

brew upgrade gradle

Install / upgrade gradle on Mac OS X

rm -rf plugins/*

cordova platform rm android

cordova platform add android