App is already submitted to App Store from xcode-9 and now I have to update new version.But now xcode is updated i.e.xcode 10.During Validating it shows 'Apps must contain a provisioning profile in a file named embedded.mobileprovision..' .App is working fine on simulator
Even I have downloaded provisioning certificated.
I tried to clear out the provisioning profiles and none of it did help. What changed from the previous XCode version to this one is the build system. By changing your build system back to the legacy one, this was resolved for me.
You can switch out the build system under file > workspace settings (or project settings) and then select Legacy Build System under Build System (see screenshot).