ionViewWillEnter error: URI malformed

usually I’m getting this error" ‘Page’ ionViewWillEnter error: URI malformed"
and my app stop working

Idk what’s going on.
there is my ionic info and a screenshot about the error .


Cordova CLI: 6.5.0
Ionic Framework Version: 2.0.0-rc.6
Ionic CLI Version: 2.2.1
Ionic App Lib Version: 2.2.0
Ionic App Scripts Version: 1.0.0
ios-deploy version: 1.9.0
ios-sim version: 5.0.13
OS: macOS Sierra
Node Version: v6.9.2
Xcode version: Xcode 8.3.3 Build version 8E3004b