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How can I convert NSDictionary to NSData and vice versa?

...tingPrettyPrinted error:&error]; NSDictionary *dictFromData = [NSJSONSerialization JSONObjectWithData:dataFromDict options:NSJSONReadingAllowFragments ...
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How to manually create icns files using iconutil?

When I'm validating my app I get this error: 18 Answers 18 ...
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Getting a list of files in a directory with a glob

...tManager]; NSArray *dirContents = [fm contentsOfDirectoryAtPath:bundleRoot error:nil]; NSPredicate *fltr = [NSPredicate predicateWithFormat:@"self ENDSWITH '.jpg'"]; NSArray *onlyJPGs = [dirContents filteredArrayUsingPredicate:fltr]; If you need to do it with NSURL instead it looks like this: NSU...
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Why does installing Nokogiri on Mac OS fail with libiconv is missing?

...10.9.3 and whatever I try, the install fails in the end with the following error message: 33 Answers ...
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Sql Server 'Saving changes is not permitted' error ► Prevent saving changes that require table re-cr

...t the table design, like change a column type from int to real, I get this error: 16 Answers ...
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Cannot set property 'innerHTML' of null

Why do I get an error or Uncaught TypeError: Cannot set property 'innerHTML' of null? I thought I understood innerHTML and had it working before. ...
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The builds tools for v120 (Platform Toolset = 'v120') cannot be found

... But, but... I get this error even though I have VS 2013 installed on my machine! – Tim Lovell-Smith Dec 10 '13 at 15:56 5 ...
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Fix warning “Capturing [an object] strongly in this block is likely to lead to a retain cycle” in AR

...onary = [[CJSONDeserializer deserializer] deserialize:request.responseData error:nil]; request = nil; // .... }]; Update: got it to work with the keyword '_weak' instead of '_block', and using a temporary variable: ASIHTTPRequest *_request = [[ASIHTTPRequest alloc] initWithURL:... __weak...
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Can't push to GitHub because of large file which I already deleted

...ining 0 predicted) /usr/lib/git-core/git-filter-branch: 1: eval: Syntax error: end of file unexpected – João Abrantes Apr 14 '17 at 11:27  |  ...
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Heroku + node.js error (Web process failed to bind to $PORT within 60 seconds of launch)

... The error happens when Heroku failed to bind the port or hostname at server.listen(port, [host], [backlog], [callback]). What Heroku requires is .listen(process.env.PORT) or .listen(process.env.PORT, '0.0.0.0') So more generica...