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The identity used to sign the executable is no longer valid

... to Preferences --> Accounts --> View Details Press the + symbol and select iOS Development Press the refresh button in the lower left corner (called Download all in Xcode 7) PS: Sometimes it may also help to delete invalid provisioning profiles: right-click -> move to trash I saw this...
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How to split text without spaces into list of words?

...a string without spaces.""" # Find the best match for the i first characters, assuming cost has # been built for the i-1 first characters. # Returns a pair (match_cost, match_length). def best_match(i): candidates = enumerate(reversed(cost[max(0, i-maxword):i])) ...
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How do I change Eclipse to use spaces instead of tabs?

...dow » Preferences Expand Web » HTML Files Click Editor Under Formatting, select the Indent using spaces radio button Click OK to apply the changes. CSS Follow the same instructions for HTML, but select CSS Files instead of HTML Files. JSP By default, JSP files follow the formatting preference...
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The developers of this app have not set up this app properly for Facebook Login?

.../developers.facebook.com/ Click on the Apps menu on the top bar. Select the respective app from the drop down. The circle next to your app name is not fully green. When you hover mouse on it, you'll see a popup saying, "Not available to all users because your app is not live." So next...
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How to conditionally push an item in an observable array?

...the following ($parent is due to this being inside a table row loop): <select data-bind="visible: editing, hasfocus: editing, options: $parent.jobroles, optionsText: 'name', optionsValue: 'id', value: jobroleId, optionsCaption: '-- Select --'"> </select> <...
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Can you call Directory.GetFiles() with multiple filters?

...lters, System.IO.SearchOption searchOption) { return filters.Split('|').SelectMany(filter => System.IO.Directory.GetFiles(sourceFolder, filter, searchOption)).ToArray(); } I found it here (in the comments): http://msdn.microsoft.com/en-us/library/wz42302f.aspx ...
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Fastest way to check if a string is JSON in PHP?

... Checking first character of string for {, [ or first symbol of any other literal can potentially greatly speed this one up when many of incoming strings are expected to be non-JSON. – Oleg V. Volkov Se...
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What is the advantage of using heredoc in PHP? [closed]

...e day I used to use them to construct SQL queries: $sql = <<<SQL select * from $tablename where id in [$order_ids_list] and product_name = "widgets" SQL; To me this has a lower probability of introducing a syntax error than using quotes: $sql = " select * from $tablename where ...
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Can a JSON value contain a multiline string

... Check out the specification! The JSON grammar's char production can take the following values: any-Unicode-character-except-"-or-\-or-control-character \" \\ \/ \b \f \n \r \t \u four-hex-digits Newlines are "control characters" so, no, you may not have a literal newli...
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How can I view live MySQL queries?

... As far as I can tell, there is no way to trigger anything on a SELECT statement. Triggers only apply to INSERT, UPDATE, DELETE... or am I misinformed? – gabe. Dec 8 '11 at 21:14 ...