Open Radar

 
Summary:
I have been plagued by this problem for over a year.

Steps to Reproduce:
### To reproduce:

1. clone this repository:  https://github.com/jmoody/animated-happiness
2. build and run the 'chou' target with Xcode 5.1.1 with base SDK 7* simulator or physical device
3. launch Instruments 5.1.1, target the chou app on the target from 2.
4. execute the follow script in a UIAutomation template

```
var target = UIATarget.localTarget();

for (i = 0; i < 1000; i++) { 
	UIALogger.logDebug("starting iteration: " + i)
	target.frontMostApp().mainWindow().elements()["first page"].textFields()["text"].setValue("");
	target.frontMostApp().mainWindow().elements()["first page"].textFields()["text"].tap();
	target.frontMostApp().keyboard().typeString("Hello");
	target.frontMostApp().keyboard().typeString("\n");
	target.delay(1);
}
```

Increase the number iterations until you get a failure.

For fun, try a more complicated string like: "}=k,Gk-f\"&7{2&ZRq$2zyzsq#y.R,?<R)T;w,xQYm€*3!,Nu?PY"

Expected Results:
### Expected

UIAKeyboard.typeString() to work without error.

Actual Results:
### Actual

VerboseError: Cannot set value on invalid element: UIATextField from UIATextField

Version:
* OS X 10.9.4 (13E28)
* Xcode 5.1.1
* Instruments 5.1.1
* iOS 7


Notes:
* https://github.com/calabash/calabash-ios/issues/269
* https://github.com/calabash/calabash-ios/issues/259
* http://stackoverflow.com/questions/10549046/target-frontmostapp-keyboard-failed-to-locate-key-n

Related iOS 8b4

https://devforums.apple.com/message/1013742#1013742