Image Picker fails when running "ionic cordova run ios"

In Terminal, I am trying to run “ionic cordova run ios” with my iPhone X connected via USB. My app runs successfully without the Image Picker plugin installed. If I install the Image Picker plugin, running fails with this error:

2018-10-29 10:18:20.461 ios-deploy[2033:125873] [ !! ] Error 0xe8000022: The service is invalid. AMDeviceStartService(device, CFSTR(“”), &gdbfd, NULL)

Error: Error code 253 for command: ios-deploy with args: --justlaunch,–no-wifi,-d,-b,/Users/waynedocuwrx/desktop/apps/true_field/platforms/ios/build/device/TRUE

I have the most updated versions of iOS (12.0.1), macOS Mojave (10.14), Xcode (10.0) and Ionic (4.2.1).