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package R does not exist

...kage.R; Of course, replacing your.app.package with your app package. In all the classes which use R resource references, remove any other import with .R, i.e. import android.R; share | improve th...
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How do I update pip itself from inside my virtual environment?

...ate pip itself? According to pip --version , I currently have pip 1.1 installed in my virtualenv and I want to update to the latest version. ...
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How do I clear the terminal screen in Haskell?

...nal support, with Windows compatibility You can find it in Hackage and install using cabal install ansi-terminal. It specifically has functions for clearing the screen, displaying colors, moving the cursor, etc. Using it to clear the screen is easy: (this is with GHCI) import System.Console.ANSIclea...
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Maven error: Could not find or load main class org.codehaus.plexus.classworlds.launcher.Launcher

I have installed a latest maven-3.0.4 on Windows 7 : The installation details are as follows: Installation Path : ...
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Is there a way to iterate over a slice in reverse in Go?

... How about use defer: s := []int{5, 4, 3, 2, 1} for i, _ := range s { defer fmt.Println(s[i]) } share | improve this answer | follow | ...
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What is the correct way to start a mongod service on linux / OS X?

I've installed mongodb and have been able to run it, work with it, do simple DB read / write type stuff. Now I'm trying to set up my Mac to run mongod as a service. ...
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Convert integer to string Jinja

... my case I've got integers as strings coming from JSON content files: "hero_title_img_w": "111" and "hero_title_img2_w": "222". Then I'm adding them in .NJK file: {{ hero_title_img_w|int + hero_title_img2_w|int }} to use as image's width attribute. Hope it helps somebody one day. ...
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How do arrays in C# partially implement IList?

...ional, zero-based arrays, as far as the language is concerned, the array really does implement IList<T> too. Section 12.1.2 of the C# specification says so. So whatever the underlying implementation does, the language has to behave as if the type of T[] implements IList<T> as with any ot...
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How do I monitor the computer's CPU, memory, and disk usage in Java?

... = 390625000 is only how long that thread has been running. That is not really useful for determining the processor usage – MikeNereson Jul 14 '09 at 15:35 2 ...
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Very simple log4j2 XML configuration file using Console and File appender

...n" /> </Console> <File name="MyFile" fileName="all.log" immediateFlush="false" append="false"> <PatternLayout pattern="%d{yyy-MM-dd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/> </File> </Appenders> <Loggers> ...