Eeek! I've just re-published and downloaded my files, and Xcode gives me this error message: "The JSON data for this app is invalid. Restart the app to try again." JSONLint says it's all good JSON... has anyone else had this error? (I've re-started the iOS simulator and Xcode twice each, same result.) I am noticing that there is often repetition in the object definitions appearing in BT_config.txt, eg: {"itemId":"1D8B6BFE1774B5B8579668B", "itemType":"BT_screen_menuListSimple", "itemNickname":"Home menu", "itemId": "1D8B6BFE1774B5B8579668B", "itemType": "BT_screen_menuListSimple", "itemNickname": "Home menu", "navBarTitleText": "Home Menu", "navBarBackgroundColor": "#00CCFF", "navBarStyle": "solid", "navBarRightButtonType": "next", etc. It's in several objects and is always the first three definitions that are repeated. Is that odd or have I just not noticed before, and could that be a cause? (Note: removing those duplicate parameters didn't change anything, I still got the same error message.) Cheers Paddy.

Problem solved (though I don't know why...). Copied and pasted all the config code from the BT Control Panel directly into the BT config file as seen through Xcode, ran it on the simulator and it worked. It's still doubling up on those first three parameters in some objects, but who am I to question the logic?!! It works, that's all that matters. :) <phew>

Great detective work and thanks for posting the solution! Farcat

I am having the same problem now. Where do I find BT control panel to try above? thanks

Click for the "JSON Data" button.

.. or if your web interface looks like mine, look for "Configuration Data" in the menu list on your app's Control Panel. As @farcat says, it's just JSON data. Copy that, then open Xcode and look for the BT_config.txt file in your project. View its contents, then paste the JSON into it to completely replace what's there. That seemed to work for me.

I have this same problem. My android app works fine. Then I download the zip file, open in Xcode and then copy across the BT_images and BT_pluggins folders and it run's fine. Then I get the JSON error asking me to re-start! I have tried the copy paste advice PaddyO, can someone please help? I'm tearing my hair out :(

Have you then copied the config data across into the config file in Xcode as well? (though if it's a new build it 'shouldn't' need it.) And cleaned it etc etc? It's always worth starting Xcode from scratch again, cleaning, cleaning, cleaning... And make sure that you've closed down the simulator as well and only restart it through Xcode. Basically, you want to close everything down and reload your BT project into Xcode as though it was the first time ever. Sorry if you've tried all this, but it's my standard first trouble-shoot now - I find that there's usually some shred of memory left in there somewhere that hangs onto a bit of the previous version and it always seems to make it perplexing. (Yep, a very technical explanation that!) It might also be worth checking that the JSON is actually valid too - at least you'll know that it is (or isn't) the cause. Cheers Paddy

.. alternatively, shut your machine down, go and have 3 beers and look at it tomorrow. Always seems to work better that way. :)

I went through a JSON validation tool and got this: Parse error on line 446: ... "questionText": "A 19-year-old nulli -----------------------^ Expecting 'STRING', 'NUMBER', 'NULL', 'TRUE', 'FALSE', '{', '[' How do I find which part needs fixing? I have had many beers and headaches....not sure if from beers or app!

Is that the full line of code SM? Seems like half is missing - can you post more? Cheers Paddy.

I have the same problem, thank you for your help. Regards, John

Having just had the same problem running the app on a device (though the simulators were fine), I found the only thing that worked, after trying a clean, delete app from device, restart everything, delete cached data etc., was a re-download of the ios package from BT.

I tried everything above and nothing worked on the simulator. Everything worked fine on a device. I even reset the content and settings of the simulator...still nothing. Then I copied the Configuration Data URL from the Core Properties, pasted it into my browser and copied the Config Data from it. It launched fine and the simulator worked great with this. No reason why this worked but it did.

I'm on my first BT project, concentrating mainly on the iOS app. I'm getting the same error ( "The JSON data for this app is invalid" ) on both the simulator and the actual iPhone device. I tried the trick listed here (pasting the config text straight into the Xcode side), but with no luck. I have republished and re-downloaded the project also.

I went to jsonlint.com and found that one of my latitude entries for a mapping instance, apparently had a tab at the start of the data. After I removed that, the invalid JSON error went away, but it was replaced by this one: "There was a problem reading some required data. Try again?" Still working on it.

After going after the offending map entry, and then rebuilding the download, it seems to be working.