Connecting LC to Xcode

andrew at andrew at
Wed Dec 4 13:03:20 EST 2019

What is your virtual device? I don't have this problem any longer with  
Xcode 11.1 (required for LC 9.6dp1), but in older versions the default  
iPad was an iPad Air and the default iPhone was an iPhone 5 (or 5s?)  
and the Simulator wouldn't fully launch.

In the device Simulator you can launch a different device (you can  
have multiple devices running, but can't choose which device to Test  
to like you can with Android emulator). Launch a different device by  
going to the drop-down menu in Simulator and choose Hardware > Device  
 > iOS >

That seemed to work consistently for me. YMMV

--Andrew Bell

> Date: Tue, 3 Dec 2019 20:16:06 -0800
> From: Marty Knapp <martyknappster at>
> Subject: Re: Connecting LC to Xcode
> Wow, this is fun. Well thanks to Curry I got a version of Xcode that  
> works (10.1) with LC 9.5 and Mojave. I make a simple app with one  
> button and try to launch in the Simulator and I get an error "The  
> simulator seems to be taking a long time to launch..." Sometimes get  
> another error "Unable to start simulation: Time out waiting for  
> device to start."
> I try launching the Simulator first, then click the "Test? button in  
> LC and that results in "Unable to start simulation: Failed to  
> install the requested application"

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