Simulator is not updateing please help.

I am very new at Xcode programming and have been working through a tutorial provided by apple. It has a classic hello world program and switches to a to do list program. I will provide the address for the tutorial at the end.
The tutorial instructed for me to remove the "Hello world" label and enter in a text field box. Everything looked great, but when I clicked on simulator it still only contained the label "Hello World" instead of the changes I had made.
I did some research on the internet and found some information about resolving layout issues. I removed all constraints and used the command for new constraints to be auto built. Unfortunately, this approach did not work ether.
I also tried deleting the app from the simulator and re-ran the app and this also did not show the new display.
Does anyone else have any advice on what I am missing.
Xcode Version: 5.1.1
IOS Simulator Version: 7.1
Link to Tutorial: https://developer.apple.com/library/iOS/referencelibrary/GettingStarted/RoadMapi OS/FirstTutorial.html#//apple_ref/doc/uid/TP40011343-CH3-SW1
Thank you for your time,

Thank you, for your prompt responce. That was exactly the missing link in the process.
JeramyH

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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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