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Unresolved specs during Gem::Specification.reset:

...t turned out to be a missing line in the gemspec file: $:.push File.expand_path("../lib", __FILE__) This line is normally at the top of the file (in many of the gems I have recently been working in) and I had commented it out to see why. ...
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Is it possible to change the textcolor on an Android SearchView?

...ans using reflection. Also works with appcompat. – dj_bushido Jan 3 '15 at 22:44 You can also set android:theme on the...
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json_encode is returning NULL?

...ser didn't solve my problem. For those in same situation, here is how I finally handled this error: Just utf8_encode each of your results. while($row = mysql_fetch_assoc($result)){ $rows[] = array_map('utf8_encode', $row); } Hope it helps! ...
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How do I save a UIImage to a file?

...// Save image. [UIImagePNGRepresentation(image) writeToFile:filePath atomically:YES]; Core Data has nothing to do with saving images to disk by the way. share | improve this answer | ...
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How to check whether a file or directory exists?

...iven file or directory exists func exists(path string) (bool, error) { _, err := os.Stat(path) if err == nil { return true, nil } if os.IsNotExist(err) { return false, nil } return false, err } Edited to add error handling. ...
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Why doesn't Java allow to throw a checked exception from static initialization block?

Why doesn't Java allow to throw a checked exception from a static initialization block? What was the reason behind this design decision? ...
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How to reset sequence in postgres and fill id column with new data?

... This might cause duplicate ids. To prevent this, you can first set all to very high values: UPDATE t SET idcolumn=1000000+ nextval('seq'); then run the above script. – tahagh Nov 28 '13 at 13:15 ...
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Cannot push to Git repository on Bitbucket

...ent every time you run GitBash: $ cat ~/.bashrc If you see a function called start_agent, this step has already been completed. If no file, continue. If there is a file that does not contain this function, you're in a sticky situation. It's probably safe to append to it (using the instructions ...
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difference between primary key and unique key

...d on multiple columns, e.g. Primary key (CustomerID, ProductID). This is called composite primary key. This is to clarify the first point, as it might be take as it is (read one key => one column ) by new comer to sql : ) – ken Apr 10 '14 at 13:53 ...
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How to find and return a duplicate value in array

...ou're writing this code for some huge scaling data (and if so, you can actually just use C or Python), the provided answer is far more elegant/readable, and isnt' going to run that much slower compared to a linear time solution. furthermore, in theory, the linear time solution requires linear space,...