Re: Playground
Re: Playground
- Subject: Re: Playground
- From: David Grant <email@hidden>
- Date: Thu, 11 Jun 2015 12:18:53 -0700
So I followed your instructions below, and the playground opened and I waited very very patiently for the wheel to stop spinning as it said “running playground”. Then I was met with the following pop up.
"Failed to launch iOS stub for playground execution: error: attach failed: lost connection.”
> On Jun 11, 2015, at 12:00 PM, Quincey Morris <email@hidden> wrote:
>
> On Jun 11, 2015, at 10:58 , David Grant <email@hidden> wrote:
>>
>> Playground execution terminated because the process stopped unexpectedly.
>
> Here’s what I would do:
>
> 1. Close all projects and any playground windows you have open.
>
> 2. Go to the Projects window (that’s been split out from the organizer), and delete any entries for various playgrounds you have previously created. I’m not sure this does anything useful, but there’s no “Clean” function for playgrounds, and it’s possible this will clean something out.
>
> 3. Quit and relaunch Xcode. Watch the status area in the toolbar to make sure you wait until it’s finished spinning after relaunch. You may even want to use Activity Monitor to check that Xcode goes pretty much idle. (It’s not necessarily a problem if it’s still doing something, but it gets confusing if that delays what you do next to the point of it seeming broken.)
>
> 4. Create a new iOS playground. Again, wait for it to go idle or crash or report an error. This might take a minute or so.
>
> 5. Click the “Show the Debug Area” button in the bottom left, and check there for error messages.
>
> 6. Check the system log (via Console utility) to see if anything has been logged there.
>
> 7. If you still don’t see the “Hello, playground” output, submit a bug report and attach the playground.
>
> You can then play around trying things like closing and re-opening the playground, quitting and relaunching Xcode, and using Editor -> Execute Playground to see if you can get it to start working. The key is to try one thing at a time, and *wait* to see what happens, since some errors take a while to be logged.
>
> My guess is that if you can get it work once, it will work fine after that. If you can’t get it to work once, then there’s probably something corrupt in Derived Data (or a similar cache location) that’s preventing Xcode from running the playground process.
>
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