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Facebook Graph API v2.0+ - /me/friends returns empty, or only friends who also use my application

...c void onCompleted(Response response) { FacebookRequestError error = response.getError(); if (error != null && response != null) { Log.e(TAG, error.toString()); } else { graphObject = ...
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The type or namespace name 'Objects' does not exist in the namespace 'System.Data'

...have YET referenced Microsoft's assembly System.Data.Entity. Its giving me errors. So my question is that do I need to reference System.Data.Entity FIRST before adding that using statement? – vibs2006 Apr 24 '17 at 5:50 ...
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Converting string from snake_case to CamelCase in Ruby

...ant in context (and does need camelize). 'active_record'.constantize gives error, 'active_record'.camelize.constantize returns the constant ActiveRecord, 'active_record'.classify returns the string 'ActiveRecord'. And if you did 'no_class'.camelize.constantize you'd get error (no such constant NoCla...
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Why does C++ need a separate header file?

...for backwards compatibility. Today, it makes no sense. It is inefficient, error-prone and overcomplicated. There are far better ways to separate interface and implementation, if that was the goal. However, one of the proposals for C++0x was to add a proper module system, allowing code to be compil...
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Sample random rows in dataframe

...ow make it better by checking first if n<=nrow(df) and stopping with an error. share | improve this answer | follow | ...
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How do I assert equality on two classes without an equals method?

...u don't have to pull in yet another test framework and it'll give a useful error when the assert fails (expected: field=<value> but was field=<something else>) instead of expected: true but was false if you use something like EqualsBuilder.reflectionEquals(). The downside is that it is ...
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git-diff to ignore ^M

...pace cr-at-eol This basically tells Git that an end-of-line CR is not an error. As a result, those annoying ^M characters no longer appear at the end of lines in git diff, git show, etc. It appears to leave other settings as-is; for instance, extra spaces at the end of a line still show as error...
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Appending a line to a file only if it does not already exist

... Add -s to ignore errors when the file does not exist, creating a new file with just that line. – Frank Mar 21 '18 at 18:09 ...
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Why does @foo.setter in Python not work for me?

...t; File "/devel/class_test.py", line 6, in x return self._x AttributeError: 'testDec' object has no attribute '_x' >>> k.x = 5 called setter >>> k.x called getter 5 >>> Another detail that might cause problems is that both methods need the same name for the proper...
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'pip' is not recognized as an internal or external command

I'm running into a weird error when trying to install Django on my computer. 32 Answers ...