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Go build: “Cannot find package” (even though GOPATH is set)

...e your foobar.go source file is not in a directory called foobar. go build and go install try to match directories, not source files. Set $GOPATH to a valid directory, e.g. export GOPATH="$HOME/go" Move foobar.go to $GOPATH/src/foobar/foobar.go and building should work just fine. Additional reco...
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Git - Undo pushed commits

...in a remote repository, synchronized with a local repository (development) and the server one (prod). I've been making some commited changes already pushed to remote and pulled from the server. Now, I want to undo those changes. So I could just git checkout to the commit before the changes and com...
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Get the first element of an array

... I get this: <b>Strict Standards</b>: Only variables should be passed by reference. Nice workaround btw – Simone Mar 21 '12 at 13:55 ...
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How to execute PHP code from the command line?

...function_exists("my_func")) echo 'function exists'; directly with the command line without having to use a seperate php file. ...
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Python's os.makedirs doesn't understand “~” in my path

... You need to expand the tilde manually: my_dir = os.path.expanduser('~/some_dir') share | improve this answer | f...
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Difference between abstract class and interface in Python

What is the difference between abstract class and interface in Python? 8 Answers 8 ...
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JavaScript loop through json array?

...asOwnProperty(key)) { alert(json[key].id); alert(json[key].msg); } } And it gives perfect result. See the fiddle here : http://jsfiddle.net/zrSmp/ share | improve this answer | ...
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PHP cURL HTTP CODE return 0

I dont understand when I echo $httpCode I always get 0, I was expecting 404 when I change $html_brand into a broken url. Is there anything that I miss or do not know of? Thanks. ...
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How to get current timestamp in milliseconds since 1970 just the way Java gets

...ime units in a type-safe way so the compiler can enforce unit conversions, and works with normal arithmetic operators (adding timeval structs is annoying). – Oz. Nov 10 '16 at 19:02 ...
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ALTER TABLE without locking the table?

... And have a thorough test plan before swapping. If it fails, start over. – dkretz Jan 21 '09 at 2:29 2 ...