[Apiman-user] Plugins

I have setup the DEV server with 1.1.7-SNAPSHOT. but for some reason , i can not install plugins on apimanui . Before mvn clean install , i cleaned up my .m2 folder then built the apiman and the apiman-plugns , then got everything configured and started it , everything seems to be working fine but when installing the plugins i get 404 .. here are snapshots Any idea what should i do ?? ​