When I built the application(ipa) and try to install it through Apple Configurator 2 or diawi.com , it will install but the icon looks like gray and it wouldn't lunch. can you help me what is the problem?
@aata I just personally re-tried and I confirm you that IPA installation on local iPhone/iPad works fine.
I am 99% sure that the issue you are experiencing is due to a certificate issue. Please note that in order to be able to install your IPA on a local device the Package Distribution must be set to Development Distribution and your Provisioning Profile must contain your device UUID. More on https://docs.creolabs.com/creo/transfer-to-device.html