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Error to install Nokogiri on OSX 10.9 Maverick?

I upgraded my OSX (Lion) to Mavericks and I can't install Nokogiri for my projects. 30 Answers ...
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java.lang.IllegalStateException: The specified child already has a parent

I am using fragments, when I instantiate a fragment the first time it it. but the second time I got this exception. I couldn't find the line where I got the error? ...
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How can I propagate exceptions between threads?

We have a function which a single thread calls into (we name this the main thread). Within the body of the function we spawn multiple worker threads to do CPU intensive work, wait for all threads to finish, then return the result on the main thread. ...
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Matrix Transpose in Python

I am trying to create a matrix transpose function for python but I can't seem to make it work. Say I have 18 Answers ...
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Is it abusive to use IDisposable and “using” as a means for getting “scoped behavior” for exception

Something I often used back in C++ was letting a class A handle a state entry and exit condition for another class B , via the A constructor and destructor, to make sure that if something in that scope threw an exception, then B would have a known state when the scope was exited. This isn't pur...
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STL or Qt containers?

What are the pros and cons of using Qt containers ( QMap , QVector , etc.) over their STL equivalent? 14 Answers ...
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Adding VirtualHost fails: Access Forbidden Error 403 (XAMPP) (Windows 7)

I've got a XAMPP installation running on Windows 7. 9 Answers 9 ...
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vim “modifiable” is off

Trying to create a new file with nerd tree. I hit the a key to create a new file and i get the message: 7 Answers ...
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Efficiently replace all accented characters in a string?

For a poor man's implementation of near -collation-correct sorting on the client side I need a JavaScript function that does efficient single character replacement in a string. ...
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How do I pipe or redirect the output of curl -v?

For some reason the output always gets printed to the terminal, regardless of whether I redirect it via 2> or > or |. Is there a way to get around this? Why is this happening? ...