iOS debug build install fails

Question

I have a CN1 test project which was last built and successfully installed on various test devices in mid January 2017.

In rebuilding this project using the current C

Answer 1

Check that the UDID of the device you are trying to install the app on is correct and attached to the app provisioning profile during the setup wizard.

Also, if the package name of your app changes, remove the existing app from your device before installing.

Lastly, Make sure your App doesn't have a similar reverse domain name as any app on the testing device...which includes your app's store build.