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Android studio - Failed to find target android-18

...ough. In my case, I changed both compileSdkVersion, and buildToolsVersion. Now it work. Hope this help buildscript { repositories { mavenCentral() } dependencies { classpath 'com.android.tools.build:gradle:0.6.+' } } apply plugin: 'android' ...
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How to check if a URL is valid

...:isbn:0451450523" =~ URI::regexp => 0 That being said, as far as I know, Ruby doesn't have a default way to parse URLs , so you'll most likely need a gem to do so. If you need to match URLs specifically in HTTP or HTTPS format, you could do something like this: uri = URI.parse(my_possible_ur...
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Choosing between qplot() and ggplot() in ggplot2 [closed]

...o the console 15 minutes earlier, I write almost all of them into a script now - so I use ggplot almost all of the time. (Interesting to see the diversity of answers!) share | improve this answer ...
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Printing tuple with string formatting in Python

... I never knew why % is obsolete but I now always you str.format anyway, blindly. Nevermind that, I'm interested in what the full qualifier is, because the simple {0} isn't the full qualifier, but merely a position indicator. For an int, what I call the full quali...
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How to avoid .pyc files?

... From "What’s New in Python 2.6 - Interpreter Changes": Python can now be prevented from writing .pyc or .pyo files by supplying the -B switch to the Python interpreter, or by setting the PYTHONDONTWRITEBYTECODE environment variable before running the interpreter. This setting is...
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No module named pkg_resources

... July 2018 Update Most people should now use pip install setuptools (possibly with sudo). Some may need to (re)install the python-setuptools package via their package manager (apt-get install, yum install, etc.). This issue can be highly dependent on your OS a...
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Using context in a fragment

...(Activity activity) method was deprecated in API level 23. Solution Now to get context in Fragment we can use onAttach (Context context) onAttach (Context context) Called when a fragment is first attached to its context. onCreate(Bundle) will be called after this. Documentation ...
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Why would a JavaScript variable start with a dollar sign? [duplicate]

...(_) are permitted anywhere in an IdentifierName. As such, the $ sign may now be used freely in variable names. Certain frameworks and libraries have their own conventions on the meaning of the symbol, noted in other answers here. ...
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Open soft keyboard programmatically

... }); and when this view will create it means that all screen visible now you can call whatever you want – Aleksey Timoshchenko Jun 28 '16 at 12:15 ...
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How can you undo the last git add?

... So the real answer to Can this programmer now unstage his last changes with some magical git command? is actually: No, you cannot unstage just the last git add. That is if we interpret the question as in the following situation: Initial file: void foo() { } ma...