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Activity has leaked window that was originally added

What is this error, and why does it happen? 40 Answers 40 ...
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App Inventor 2 MQTT拓展入门(保姆级教程) · App Inventor 2 中文网

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Recursively add the entire folder to a repository

... Both "git add *" and "git add SocialApp" called from top directory should add recursively all directories. Probably you have no files in SocialApp/SourceCode/DevTrunk/SocialApp and this is the reason. Try to call "touch SocialApp/SourceCode/DevTrunk/SocialApp...
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Undefined method 'task' using Rake 0.9.0

...le: require 'rake' # Rake Fix Code start # NOTE: change 'Anelis' to your app's module name (see config/application.rb) module ::Anelis class Application include Rake::DSL end end module ::RakeFileUtils extend Rake::FileUtilsExt end # Rake Fix Code end MyApp::Application.load_tasks Th...
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What is the difference between JSF, Servlet and JSP?

...s backend data (via attributes available in the page, request, session and application scopes), mostly in combination with taglibs. When a JSP is requested for the first time or when the web app starts up, the servlet container will compile it into a class extending HttpServlet and use it during the...
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使用App Inventor扩展实现多点触控:Scale Detector · App Inventor 2 中文网

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How to run a C# console application with the console hidden

Is there a way to hide the console window when executing a console application? 13 Answers ...
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Ideal Ruby project structure

...e LolCatz module and the LolCatz::Moar class that would look like: lib/ appname.rb lolcatz/ moar.rb That is why there is an lib/appname folder because most libraries are in the appname namespace. Additionally, if you try running the command newgem --simple [projectname] that'll quickly g...
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socket.io rooms or namespacing?

...ompartments (2 layers max), use a namespace/room combo if your client-side app consists of different parts that (do not themselves care about compartments but) need to be separated from each other, use namespaces. An example for the latter would be a large client app where different modules, perha...
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About Android image and asset sizes

I need to clarify some doubt about the image assets for my app, 4 Answers 4 ...