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Getting error: Peer authentication failed for user “postgres”, when trying to get pgsql working with

....conf file (/etc/postgresql/9.1/main/pg_hba.conf*). This line: local all postgres peer Should be: local all postgres md5 * If you can't find this file, running locate pg_hba.conf should show you where ...
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Create a CSS rule / class with jQuery at runtime

Usually I have a CSS file which has the following rule: 21 Answers 21 ...
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Qt: can't find -lGL error

I just reinstalled QtCreator, created new project ( Qt Application ) an got this after compilation: 8 Answers ...
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How does the algorithm to color the song list in iTunes 11 work? [closed]

...y discovered that the built-in Mathematica function DominantColors doesn't allow enough fine-grained control to approximate the algorithm that iTunes uses. I wrote my own function instead... A simple method to calculate the dominant color in a group of pixels is to collect all pixels into buckets ...
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javac not working in windows command prompt

... ah yes, all i had to do was re-open the command prompt and it worked fine, thanks! – Domenic Nov 5 '09 at 6:02 1 ...
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从源代码剖析Mahout推荐引擎 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

从源代码剖析Mahout推荐引擎前言Mahout框架中cf.taste包实现了推荐算法引擎,它提供了一套完整的推荐算法工具集,同时规范了数据结构,并标准化了程序开发过程。应用推...前言 Mahout框架中cf.taste包实现了推荐算法引擎,它提供...
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Xcode 5.1 - No architectures to compile for (ONLY_ACTIVE_ARCH=YES, active arch=x86_64, VALID_ARCHS=i

...from the workspace in the left pane of Xcode and close Xcode. Run "pod install" from the command line to recreate the "Pods" project. Re-open Xcode and make sure "Build Active Architecture Only" is set to "No" in the build settings of both the "Pods" project and your own project. Clean and build. ...
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Why does isNaN(“ ”) (string with spaces) equal false?

... You should try NaN===NaN or NaN==NaN;-) I don't know if all this means the javascript engine is wacky or that javascript is bad for wacky programmers though. – KooiInc May 5 '09 at 22:01 ...
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Can I extend a class using more than 1 class in PHP?

... Answering your edit : If you really want to fake multiple inheritance, you can use the magic function __call(). This is ugly though it works from class A user's point of view : class B { public function method_from_b($s) { echo $s; } } c...
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How to create has_and_belongs_to_many associations in Factory girl

... Thank you, most neat of all solutions. – Mik May 29 '12 at 19:14 Th...