I suspect this is due to having installed the latest version of Cordova CLI and/or the latest version of the cordova-android framework (what you get when you use the command "cordova platform add android"). My recollection is that with the latest versions of those items you may need to use the latest version of the Crosswalk plugin.
If you look in the config.xml file you'll see that a specific version of Crosswalk is being requested (probably 19), the last version produced is 23, but if you remove the version specifier for the Crosswalk plugin you'll get the latest. I'd try that to see if it resolves the issue or simply remove Crosswalk from your Build Settings and create a new config.xml and see if it builds without Crosswalk.
Also curious if the build succeeds with PhoneGap Build, since the config.xml file that is created specifies some specific CLI and plugin versions, which should work there. Unlike using Cordova CLI, where you only have one version of the build tools, you have access to many versions on PGB, and the config.xml is very specific, just as the XDK build system is. So I would expect a build on PGB to work, which would point to further evidence that the version of CLI you are running is what's creating the conflict.
I tried to remove the crosswalk, to change the min-sdk, the target sdk, and many others, but it's still not working.
But something is very weird: the same zip archive I used when trying to build the app using Cordova CLI, was working fine, without errors on PhoneGap Build.... No error, but same file. This proves that Intel XDk package build system is working perfectly, the problem is at Cordova CLI, Thank you once again for everything !