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Net::SMTPAuthenticationError when sending email from Rails app (on staging environment)

I am sending email from my Rails application. It works well on development environment, but fails on staging. I get the following error: ...
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ASP.NET MVC - Find Absolute Path to the App_Data folder from Controller

What is the correct way to find the absolute path to the App_Data folder from a Controller in an ASP.NET MVC project? I'd like to be able to temporarily work with an .xml file and I don't want to hardcode the path. ...
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Adding parameter to ng-click function inside ng-repeat doesn't seem to work

...string from a property of the binding object (the button), but it is not wrapped in quotes. Looks like AngularJS handles that for us. I got hung up on that for a few minutes. share | improve this ...
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How to change an application icon programmatically in Android?

Is it possible to change an application icon directly from the program? I mean, change icon.png in the res\drawable folder. I would like to let users to change application's icon from the program so next time they would see the previously selected icon in the launcher. ...
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Share application “link” in Android

I want my application user to be able to share/recommend my app to other users. I use the ACTION_SEND intent. I add plain text saying something along the lines of: install this cool application. But I can't find a way to enable users to directly go to the install screen of market place for instance....
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Is there a unique Android device ID?

...ng ANDROID_ID in hash in first answer about because it may not be set when app is first run, may be set later, or may even change in theory, hence unique ID may change – user604363 Feb 5 '11 at 17:06 ...
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How can I create tests in Android Studio?

... 10 minutes, you will be all set up to start adding your tests to your own app. I think you'll be surprised how easy it is. I certainly was. Intro to Android Testing There are two different types of tests that you will do. Local unit tests. These are run locally on the JVM (Java Virtual Machine). S...
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How to create a library project in Android Studio and an application project that uses the library p

...e module to be external to the project so that it can be used with another application? – rrbrambley Jul 20 '13 at 19:43 2 ...
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How do you reinstall an app's dependencies using npm?

Is there a simple way to reinstall all packages that my app depends on (i.e. they are in my apps node_modules folder)? 9 ...
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How to handle code when app is killed by swiping in android?

If my app is running and i press home button, the app goes in background. Now if a long press the home button and kill the app by swiping it from the recent app list, none of the events like onPause() , onStop() or onDestroy() gets called rather the process is terminated. So if i want my servic...