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A valid provisioning profile for this executable was not found for debug mode

...> clean all targets. 2) In "Groups & Files" -->Target --> expand it --> right click your app and select Clean "your app" 3) Goto->Window-->Organizer 4) In the Devices tab on the left, select your iphone 5) In the Provisioning section of the selected iphone delete all the cu...
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Most efficient way to reverse a numpy array

...g a view into the original array. You can then change the original array, and the view will update to reflect the changes. Are you re-creating the view more often than you need to? You should be able to do something like this: arr = np.array(some_sequence) reversed_arr = arr[::-1] do_something(...
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log messages appearing twice with Python Logging

I'm using Python logging, and for some reason, all of my messages are appearing twice. 8 Answers ...
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Relative frequencies / proportions with dplyr

...a subsequent group_by(am), to make your code more explicit. For rounding and prettification, please refer to the nice answer by @Tyler Rinker. share | improve this answer | ...
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Rails: How to change the title of a page?

...;/h1> </body> It's also possible to encapsulate the content_for and yield(:title) statements in helper methods (as others have already suggested). However, in simple cases such as this one I like to put the necessary code directly into the specific views without custom helpers. ...
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How to Sign an Already Compiled Apk

...ssues with the layout xml files. I've then rebuilt it back up with apktool and when I tried to install it on my device (using adb: adb install appname.apk) it gave me this error: ...
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How to check if a string is a valid JSON string in JavaScript without using Try/Catch

...t, read the answer below. Here we just check a JSON string using a regexp, and it will work in most cases, not all cases. Have a look around the line 450 in https://github.com/douglascrockford/JSON-js/blob/master/json2.js There is a regexp that check for a valid JSON, something like: if (/^[\],:{...
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How to format a Java string with leading zero?

...- solution when you are embedding software on something without much space and the extra libraries just aren't an option. Thanks!! – Casey Murray Dec 27 '13 at 23:39 ...
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How to use my view helpers in my ActionMailer views?

... this case (Rails 3.2.8): I have a method defined in ApplicationController and make it a helper by helper_method :my_helper_wannabe, but the method "my_helper_wannabe" doesn't become available in mailer. – Giang Nguyen Nov 7 '12 at 7:23 ...
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ASP.NET MVC How to convert ModelState errors to json

...; } return null; } } Then call that extension method and return the errors from the controller action (if any) as json: if (!ModelState.IsValid) { return Json(new { Errors = ModelState.Errors() }, JsonRequestBehavior.AllowGet); } And then finally, show those errors on th...