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Unable to run app in Simulator: Xcode beta 6 iOS 8

...; Manage Devices Click on the little + sign at the bottom Add (if missing) all the devices that you want, or delete and recreate the ones malfunctioning. If anyone of the simulator is not working then right click on it and delete it and then re-create it again ...
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proper hibernate annotation for byte[]

...ses the JPA @Lob annotation, and hibernate 3.1 can read these just fine on all major databases -- it seems to hide the JDBC Blob vendor peculiarities (as it should do). ...
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String vs. StringBuilder

... I like this answer a lot, especially the advice to code for clarity before performance. As developers, we spend as much or more time reading code as we do writing it. – Scott Lawrence Sep 16 '08 at 18:18 ...
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How to create a subdirectory for a project QtCreator?

... directory. Qt Creator displays these in the GUI in a nested fashion, and allows you to add files to them. e.g. in project.pro include(folder1/include.pri) in folder1/include.pri HEADERS += MyClass.h SOURCES += MyClass.cpp etc ...
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“Git fatal: ref HEAD is not a symbolic ref” while using maven release plugin

...r and it works too. I think the problem is that the jenkins git plugin normally checks out the branch in detached head state. So the git symbolic-ref command fails. By adding Check out to specific local branch we fix this. – René Link Oct 7 '14 at 11:38 ...
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Failed to load c++ bson extension

... I guess you did not have the make tools available when you installed your mongodb library. I suggest you do xcode-select --install (on a mac) or sudo apt-get install gcc make build-essential (on ubuntu) and run rm -rf node_modules npm cache clean npm install OR just npm update bas...
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Can someone explain in simple terms to me what a directed acyclic graph is?

...t a directed acyclic graph is? I have looked on Wikipedia but it doesn't really make me see its use in programming. 13 Answ...
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Android Lint contentDescription warning

...trouble later on. You're better off just specifying contentDescription for all of your ImageViews. If you don't need a description, then just use: android:contentDescription="@null" share | improv...
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How to compare DateTime in C#?

... MuSTaNG's answer says it all, but I am still adding it to make it a little more elaborate, with links and all. The conventional operators greater than (>), less than (<), equality (==), and more are available for DateTime since .NET Framewor...
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Vim: How to insert in visual block mode?

...capital I. Lowercase i will not work. Then type the things you want and finally to apply it to all lines, press Esc twice. If this doesn't work... Check if you have +visualextra enabled in your version of Vim. You can do this by typing in :ver and scrolling through the list of features. (You migh...