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iphone Core Data Unresolved error while saving

... It means there's a mandatory property has been assigned nil. Either in your *.xcodatamodel check the "optional" box or when you are saving to the managedObjectContext make sure that your properties are filled in. If you're getting further erro...
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Redirect using AngularJS

...10 '12 at 19:46 Renan Tomal FernandesRenan Tomal Fernandes 10.9k44 gold badges4545 silver badges3030 bronze badges ...
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Active Record - Find records which were created_at before today

... Using ActiveRecord the standard way: MyModel.where("created_at < ?", 2.days.ago) Using the underlying Arel interface: MyModel.where(MyModel.arel_table[:created_at].lt(2.days.ago)) Using a thin layer over Arel: MyModel.where(MyModel[:created...
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How to test if string exists in file with Bash?

...e. -q, --quiet, --silent         Quiet; do not write anything to standard output. Exit immediately with zero status if any match is found, even if an error was detected. Also see the -s or --no-messages option. Error handling As rightfully pointed out in the comments, the above approach ...
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Conditionally use 32/64 bit reference when building in Visual Studio

I have a project that builds in 32/64-bit and has corresponding 32/64-bit dependencies. I want to be able to switch configurations and have the correct reference used, but I don't know how to tell Visual Studio to use the architecture-appropriate dependency. ...
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Android emulator failed to allocate memory 8

... Update: Starting with Android SDK Manager version 21, the solution is to edit C:\Users\<user>\.android\avd\<avd-profile-name>.avd\config.ini and change the value hw.ramSize=1024 to hw.ramSize=1024MB The emulator is really sl...
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How do I capture bash output to the Mac OS X clipboard?

... The pbcopy command does this. For example, this puts the output from ls on the clipboard/pasteboard: ls | pbcopy And pbpaste does the reverse, writing to stdout from the clipboard: pbpaste > ls.txt You can use both together to fil...
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Java: possible to line break in a properties file?

... A backslash at the end of a line lets you break across multiple lines, and whitespace that starts a line is ignored: myStr = Hello \ World The Java docs put it this way: A logical line holds all the data of a key-element pair, which may be spread out across several adjacent natura...
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What are queues in jQuery?

...d the jQuery.com document on queue() / dequeue() is too simple to understand. What exactly are queues in jQuery? How should I use them? ...
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How do I disable a Pylint warning?

...separated by comma (,) or put this option # multiple time (only on the command line, not in the configuration file where # it should appear only once). #disable= So it looks like your ~/.pylintrc should have the disable= line/s in it inside a section [MESSAGES CONTROL]. ...