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Server is already running in Rails
When I am starting rails server using rails s command it is showing A server is already running. Check C:/Sites/folder/Pids/Server.pids
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Why would a JavaScript variable start with a dollar sign? [duplicate]
...t start with a dollar sign. When/why would you choose to prefix a variable in this way?
16 Answers
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The entitlements specified…profile. (0xE8008016). Error iOS 4.2
I am getting the 'dreaded' error The entitlements specified in your application’s Code Signing Entitlements file do not match those specified in your provisioning profile.
(0xE8008016). when trying to deploy my first app to an un-jailbroken device on iOS 4.2.6 (Verizon). The thing is, I do not h...
Quickest way to compare two generic lists for differences
What is the quickest (and least resource intensive) to compare two massive (>50.000 items) and as a result have two lists like the ones below:
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Number of processors/cores in command line
I am running the following command to get the number of processors/cores in Linux:
10 Answers
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Do fragments really need an empty constructor?
...Fragment with a constructor that takes multiple arguments. My app worked fine during development, but in production my users sometimes see this crash:
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How to find a Java Memory Leak
How do you find a memory leak in Java (using, for example, JHat)? I have tried to load the heap dump up in JHat to take a basic look. However, I do not understand how I am supposed to be able to find the root reference ( ref ) or whatever it is called. Basically, I can tell that there are several hu...
click() event is calling twice in jquery
I setup a link element and called its click event in jquery but the click event is calling twice, please see below the code of jquery.
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Entity Framework select distinct name
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Using lambda expression..
var result = EFContext.TestAddresses.Select(m => m.Name).Distinct();
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