Integrating ios Share Extensions with Unity

I am tying to integrate apple extensions share extension with unity. Where in if a user opens an image in Photos and taps share ,my app show in the list of apps in share sheet and on clicking my app it takes the user over to my share controller. I am following this tutorial https://www.ibm.com/developerworks/...-8-share-extension-photos-ibm-bluemix?lang=en to integrate app extensions. While in a pure xcode solution i am able to redirect to my app from the sharesheet. In a unity project I am getting the following error "Could not attach to pid : “1769” Unable to attach"