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ViewController respondsToSelector: message sent to deallocated instance (CRASH)

... Use Instruments to track down deallocated instance errors. Profile your application (Cmd ⌘+I) and choose Zombies template. After your application is running, try to crash it. You should get something like that: Click on the arrow next to address in the popover to show object that was called ...
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What is the difference between Amazon S3 and Amazon EC2 instance?

I need to create a web application using php mysql and html. The no.of requests and data will be very high. I need Amazon server space. ...
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How efficient can Meteor be while sharing a huge collection among many clients?

...cription, the merge box is essentially a pass-through. But a more complex app can have multiple subscriptions which might overlap. If two subscriptions both set the same attribute on the same document, the merge box decides which value takes priority and only sends that to the client. We haven't ...
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Paperclip::Errors::MissingRequiredValidatorError with Rails 4

...ing this error when I try to upload using paperclip with my rails blogging app. Not sure what it is referring to when it says "MissingRequiredValidatorError" I thought that by updating post_params and giving it :image it would be fine, as both create and update use post_params ...
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How do I test if a string is empty in Objective-C?

...aracter like any other. It's just "worth remembering" if relevant to your app. (Great thinking, fzwo!) – Fattie Jun 22 '14 at 19:09 ...
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Hide scroll bar, but while still being able to scroll

... This approach won't cover all browsers, and will be very specific to the browser's version you are working with during the development. – Itsik Avidan Oct 22 '14 at 12:23 ...
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C# Test if user has write access to a folder

... I appreciate that this is a little late in the day for this post, but you might find this bit of code useful. string path = @"c:\temp"; string NtAccountName = @"MyDomain\MyUserOrGroup"; DirectoryInfo di = new DirectoryInfo(pa...
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Is there something like RStudio for Python? [closed]

...dio, you can run parts of code in the code editing window, and the results appear in the console. 10 Answers ...
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How to get the device's IMEI/ESN programmatically in android?

...ing said, be careful about doing this. Not only will users wonder why your application is accessing their telephony stack, it might be difficult to migrate data over if the user gets a new device. Update: As mentioned in the comments below, this is not a secure way to authenticate users, and raises...
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How to create a function in a cshtml template?

...iple template files by putting the file with the @helper directive into an App_Code directory. Whereas, the @functions directive allows a function to be used only by the template that declares it. – Jon Davis Jul 4 '11 at 21:24 ...