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Sequence contains no elements?

... From "Fixing LINQ Error: Sequence contains no elements": When you get the LINQ error "Sequence contains no elements", this is usually because you are using the First() or Single() command rather than FirstOrDefault() and SingleOrDefault()....
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I don't remember my android debug.keystore password

...ew keystore, well what is default alias name? – John Error Sep 17 '12 at 9:39 you don't really need it.. just do: keyt...
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Cannot push to Git repository on Bitbucket

I created a new repository and I'm running into a strange error. I've used Git before on Bitbucket but I just reformatted and now I can't seem to get Git to work. After doing a commit, I had to add my email and name to the globals, but then it committed just fine. ...
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Check for internet connection availability in Swift

...nnection.sendSynchronousRequest(request, returningResponse: &response, error: nil) as NSData? if let httpResponse = response as? NSHTTPURLResponse { if httpResponse.statusCode == 200 { Status = true } } return Status } } And then you can check intern...
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Default value to a parameter while passing by reference in C++

...e the constant 0 cannot be changed, as it's an rvalue ("non-lvalue" in the error message) and unchangeable (const in the error message). Simply put, you want a method that can change the argument passed, but by default you want to pass an argument that can't change. To put it another way, non-cons...
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Change Tomcat Server's timeout in Eclipse

... In my case the reason of this error was wrong place for setting of Tomcat port, however I saw correct place for it on your screen ^_^. Thanks – Fisk Dec 26 '16 at 15:08 ...
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“Failed to load platform plugin ”xcb“ ” while launching qt5 app on linux without qt installed

...ed to start because it could not find or load the Qt platform plugin "xcb" error was thrown. How to resolve this in Linux Firstly you should create platforms directory where your binary is, because it is the place where Qt looks for XCB library. Copy libqxcb.so there. I wonder why authors of other a...
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How to use enums in C++

... Gotta love the C++ error messages...they prove that the language is to cumbersome to even give good feedback. I take it a 'primary-expression' is an object or a scope or some other thing that is NOT a type. Perhaps a Type is a 'secondary-expres...
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How do I remove a big file wrongly committed in git [duplicate]

... I have this error: Cannot rewrite branches: You have unstaged changes. – capybaralet Oct 13 '17 at 22:10 4 ...
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datatrigger on enum to change image

...tatus}" Value="{x:Static local:PingStatus.PING_UNKNOWN}">. No I get the error Cannot find the type 'PingStatus'. – nabulke Dec 18 '12 at 8:01 ...