Default [Q] Porting B2G on S2 Plus

Hello mates

I would like to download repos of firefox os and try to "make" a build for s2 plus devices but i can't download repos by following this.

-i fork the b2g to my github's account and edit config.sh to add s2vep.
-same think for b2g-manifest to add s2vep.xml using cm11 as revision.
-after cloning these ones i use ./config.sh s2vep to download repos but it's faild by something like this:

HTML Code:
root@Linux-Satellite-Pro-L300:~/firefox/B2G# ./config.sh s2vep
Get git://github.com/mozilla-b2g/b2g-manifest
remote: Reusing existing pack: 1351, done.
remote: Counting objects: 11, done.
remote: Compressing objects: 100% (11/11), done.
remote: Total 1362 (delta 3), reused 0 (delta 0)
Receiving objects: 100% (1362/1362), 409.11 KiB | 167.00 KiB/s, done.
Resolving deltas: 100% (775/775), done.
From git://github.com/mozilla-b2g/b2g-manifest
 * [new branch]      master     -> origin/master
 * [new branch]      v1-train   -> origin/v1-train
 * [new branch]      v1.0.0     -> origin/v1.0.0
 * [new branch]      v1.0.1     -> origin/v1.0.1
 * [new branch]      v1.1.0hd   -> origin/v1.1.0hd
 * [new branch]      v1.2       -> origin/v1.2
 * [new branch]      v1.2f      -> origin/v1.2f
 * [new branch]      v1.3       -> origin/v1.3
 * [new branch]      v1.3t      -> origin/v1.3t
 * [new branch]      v1.4       -> origin/v1.4
 * [new tag]         B2G_1_0_1_20130213094222 -> B2G_1_0_1_20130213094222
 * [new tag]         B2G_1_1_0_hd_20130530182315 -> B2G_1_1_0_hd_20130530182315
 * [new tag]         B2G_1_1_0_hd_20130530182315_BASE -> B2G_1_1_0_hd_20130530182315_BASE
 * [new tag]         closing-nightly -> closing-nightly
fatal: manifest 's2vep.xml' not available
fatal: manifest s2vep.xml not found
Repo sync failed
where is the problems? thanks for any helpful answer.
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