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An App ID with Identifier '' is not available. Please enter a different string

I am trying to add a new APP ID to prepare for App Store submission and got the following error under the bundle ID I provided. ...
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What's the difference between a web site and a web application? [closed]

I'm stumped trying to come up to a difference between a website and a web application for myself. As I see it, a web site points to a specific page and a web application is more of some sort of 'portal' to content and information. ...
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Node.js or Erlang

I really like these tools when it comes to the concurrency level it can handle. 9 Answers ...
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android.view.InflateException: Binary XML file: Error inflating class fragment

...ot explain. I created an Android application that uses Android AppCompat to make it compatible with older versions. Here is my main activity layout file: ...
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Why does Python code run faster in a function?

... You might ask why it is faster to store local variables than globals. This is a CPython implementation detail. Remember that CPython is compiled to bytecode, which the interpreter runs. When a function is compiled, the local variables are stored in a fixe...
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Context switches much slower in new linux kernels

We are looking to upgrade the OS on our servers from Ubuntu 10.04 LTS to Ubuntu 12.04 LTS. Unfortunately, it seems that the latency to run a thread that has become runnable has significantly increased from the 2.6 kernel to the 3.2 kernel. In fact the latency numbers we are getting are hard to belie...
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Twitter Bootstrap modal: How to remove Slide down effect

Is there a way to change the Twitter Bootstrap Modal window animation from a slide down effect to a fadeIn or just display without the Slide? I read through the documentation here: ...
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How can I iterate over an enum?

I just noticed that you can not use standard math operators on an enum such as ++ or += 21 Answers ...
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How to make Visual Studio copy a DLL file to the output directory?

...on an external DLL file. How can I make Visual Studio copy this DLL file automatically into the output directory (debug/release) when I build the project? ...
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Is multiplication and division using shift operators in C actually faster?

Multiplication and division can be achieved using bit operators, for example 19 Answers ...