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The type or namespace name 'DbContext' could not be found [closed]

... I had the same issue. Turns out, you need the EntityFramework.dll reference (and not System.Data.Entity). I just pulled it from the MvcMusicStore application which you can download from: http://mvcmusicstore.codeplex.com/ It's also a useful example of how to use entity fr...
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The 'json' native gem requires installed build tools

...running them and before the last attempt to install the gem that wants devkit present? Also, be sure you are using the right devkit installer for your version of Ruby. The documentation at devkit wiki page has a requirements note saying: For RubyInstaller versions 1.8.7, 1.9.2, and 1.9.3 use ...
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What is the difference between visibility:hidden and display:none?

The CSS rules visibility:hidden and display:none both result in the element not being visible. Are these synonyms? 18 A...
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Using Build Flavors - Structuring source folders and build.gradle correctly

Please note: Answer edited after Xavier's Answer 6 Answers 6 ...
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How do you tell the Visual Studio project type from an existing Visual Studio project

...utType> The GUIDs do something to define exactly what type of project it is. The ones above were taken from an ASP.NET app. They exist in WCF projects too, and flipping around the GUIDs can fool Vis Studio into changing the project type when you open it. ...
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How to fix “containing working copy admin area is missing” in SVN?

I deleted manually a directory I just added, offline, in my repository. I can't restore the directory. 21 Answers ...
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How can I search Git branches for a file or directory?

In Git, how could I search for a file or directory by path across a number of branches? 6 Answers ...
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How do the likely/unlikely macros in the Linux kernel work and what is their benefit?

... They are hint to the compiler to emit instructions that will cause branch prediction to favour the "likely" side of a jump instruction. This can be a big win, if the prediction is correct it means that the jump instruction is basically free and will take zero ...
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How do I cast a string to integer and have 0 in case of error in the cast with PostgreSQL?

In PostgreSQL I have a table with a varchar column. The data is supposed to be integers and I need it in integer type in a query. Some values are empty strings. The following: ...
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How does this program work?

It displays a 0 !! How is that possible? What is the reasoning? 13 Answers 13 ...