Cannot run on ios

So I am using this command to run:

ionic cap run ios -l --external

Then this causes error when I tried to launch on my real device:

I do not know what does this error means. Please someone explain the error and what should I do to fix it. Thanks.

Those are just warnings, it’s not clear why the build failed.
Try running from Xcode to see if it provides more information.
Run npx cap open ios and then click the “play” (triangle) button from Xcode.