For development, cordova lib is required. You can copy it from any cordova project.

1. copy content of cordova lib into CordovaLib
2. add CordovaLib/CordovaLib.xcodeproj as project dependency
3. Add CordovaLib into project Build Phases -> Target Dependencies

For more info visit https://cordova.apache.org/docs/en/2.5.0/guide/getting-started/ios/