I am trying to add an iMessage extension to my exits project to gain a new feature on ios 10 to add stickers to iMessage.
I am doing that by adding a new target from file -> new -> target in the Xcode project
But when building and running that on an iPhone device, it keeps showing unable to attach to pid error
I have googled around, some one said that I should trust profile on my iPhone device at General -> Device Managment But I could not find any profile to be trusted there.
Weird thing is that If I make a new project and add an iMessage extension like this, things will work fine but this couldn't happen when adding to a generated project by Unity
I also have tried to reboot my iPhone device and my Mac. and clean derived data.
How could I make this work?
finally I found a solution here
and the trick is I show change the archs to both armv7 and arm64 to make this work