Problems Installing Eclipse and Ruby Plugin - ruby

I installed Eclipse on my Ubuntu machine and then the Ruby Development Tools (RDT), but it would crash when I try to alter certain features, like having line numbers, how far back to have history, and the code coloring scheme didn't work fully. I decided to try to uninstall Eclipse by doing sudo aptitude remove Eclipse and then sudo aptitude install eclipse but instead it installed it back with the broken Ruby plugin. I also tried aptitude purge but that didn't help either.
How can I freshly reinstall Eclipse and get a properly working Ruby plugin?

Well, I still haven't figured out how to do it via aptitude, but downloading eclipse from their home page works.

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How to change theme in Debian 9 XFCE from pling.com using OCS-Install

The default theme is kinda boring, but I prefer Debian because is stable and have the most useful apps and software for me. Also, I like XFCE because of performance and stability, so I am not changing to other WM.
So I tried to Install some themes and icons from pling and succeded when they provide a zip or tarball, but some of the themes don't have that and just provide an OCS install
OCS
Ubuntu-Install
I did not found a way to install OCS in Debian, just Ubunutu and other, is there a way to install it?
I found the exact answer for your question here.
I have tested it in a Debian 9 box myself and everything seems to be working.
Post by user rolf:
I installed a few themes from gnome-look.org
The site uses a special URL scheme. The URL handler comes in a package
named ocs-url. Here are the instructions for installing the URL
handler on linux-apps.com.
However, the installation method described on this site has an issue:
it marks the dependencies as manually installed.
Therefore I recommend the following method instead.
My method will ensure that, when you uninstall ocs-url, its
dependencies will be automatically uninstalled as well.
First download the ocs-url Debian package, then (filename and
directory name might differ):
cd ~/Downloads
sudo dpkg -i ocs-url_3.1.0-0ubuntu1_amd64.deb
sudo apt-get install --fix-broken
Once this is done, all you have to do is click on install links on
gnome-look.org and them click "OK" and the themes will be installed in
~/.themes.
Restart the Tweaks tool and your new themes should be available.
Tested on Debian.

Problems with Cocoapods on Xcode 6.4

I'm trying to install and use Cocoapods with Xcode. I've installed already Brew, so I've used this command:
sudo gem install cocoapods
but it stays there, without response and without asking me for password (that's really strange, because of sudo command).
Maybe I got some problem with Brew Installation or Ruby on my Yosemite iMac?
I met the same error in the past, there is something wrong with my development environment. I re-install the Command Line Tools follow this guide, then everything is ok.
You can get the detail information from here, hope it can help you.

Why doesn't rails.vim recognize any gems that I install?

I'm a ruby and vim newbie. I recently installed the rails.vim plugin and all the commands work fine apart from the commands to create a new Rails project. Every time I do this it says rails is not installed on my system, but it is! It also acts up when I create a class that requires a gem that I've installed. Can anyone help with this?
Did you rvm use system before building / brew install-ing macvim? I didn't and got many errors. Doing rvm use system beforehand fixed things up for me.

Installing a perl module from CPAN on XAMPP for Windows

I'm pretty rusty with Perl and I don't think it's helping that I'm running it in Windows.
I'd like to install this module. I tried the instructions here to install a CPAN module, but it fails trying to install App::cpanminus (the very first step.) I tried just running cpan Config::Simple and it didn't work either. In both situations, it fails with this error message:
Unwrapping had some problem, won't try again without force
Had problems unarchiving. Please build manually
Running make test
Make had some problems, won't test
Running make install
Make had some problems, won't install
Does CPAN just not work from the version of Perl that's installed with XAMPP? If so, how do I upgrade it without breaking anything?
manually download and unpack the distro archive
change into the unpacked directory
run cpanm . or cpan .
XAMPP also ships with PPM in C:\xampp\perl\bin\ppm.bat which is often a more Windows friendly way to get modules for perl.
There's a step by step example of using ppm with XAMPP here: http://www.apachefriends.org/f/viewtopic.php?t=26407
Many modules are already installed in C:\xampp\perl\lib and C:\xampp\perl\site\lib

Is there a nice and easy installer for Clojure on Mac OS (Leopard)?

I found the following guide:
http://mark.reid.name/sap/setting-up-clojure.html
but it seems like a whole lot of manual steps, and I bet it is out of date already. Installing ClojureBox on Windows was a breeze. Does anyone know of a simple installer for it? Where can I download it, and what are the steps?
Thanks!
EDIT: Tried installing cake, got:
$ sudo gem install cake
Password:
ERROR: While executing gem ... (Gem::RemoteSourceException)
HTTP Response 302
Also tried installing using the script:
$ sudo ./cake_install.rb
http://github.com/ninjudd/cake-standalone/raw/master/jars/cake-0.5.4.jar
[=============================================================================]
http://build.clojure.org/releases/org/clojure/clojure/1.2.0/clojure-1.2.0.jar
[=============================================================================]
Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad version number in .class file (ordered_set.clj:1)
EDIT 2: Now the Java version issues :) What version of Java do I need and where to download it?
$ sudo cake test
Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad version number in .class file (ordered_set.clj:1)
My Leopard software is up to date :(
Apple Computer supplies their own version of Java. Use the Software Update feature (available on the Apple menu) to check that you have the most up-to-date version of Java for your Mac. If you have problems with downloading, installing or using Java on Mac, please contact Apple Computer Technical Support.
EDIT: Hm ... I suspect that one of the suggestions I tried broke my ability to connect to the internet (both wired as well as wireless) on Apple :(
Clojure is also installable via Homebrew:
http://github.com/mxcl/homebrew
brew install clojure
If you just want to run clojure programs, then macports works. Bear in mind you're dependent upon the maintainer to update versions.
If you plan on writing clojure programs, then cake is a better starting point. Installation involves one of the following (your choice):
Using gem (easiest)
gem install cake
Standalone script
Download the script
Put it somewhere in your path and chmod +x cake to make it executable
Git repository
git clone git://github.com/ninjudd/cake.git
Symlink bin/cake into your path and make it executable
Cake is a full build system, but you can just use it to fire up the repl by running cake repl. There's also leiningen, but starting repls will feel faster in cake since it uses persistent JVMs.
I find Leiningen very easy to use. Just download the script, put it somewhere in your $PATH (/usr/bin/ for example) and make it executable: sudo chmod +x lein.
Now type lein repl and Leiningen will download all the files you need and create a REPL for you. It's that easy.
You may want to check CounterClockWise (an Eclipse plugin). There's a video on how to install it here. It'll give you a lot of features to play with - including a clojure REPL.
Just checked this will still work under Ubuntu. It should be the same for macs, except using whatever macs use instead of apt-get to install maven:
http://www.learningclojure.com/2010/08/clojure-emacs-swank-slime-maven-maven.html
You need to install maven, create a file, then you can just call mvn clojure:repl and everything should just work.
If you'd also like the whole emacs-swank-slime setup that's also easy now, and described there.
If you try it can you comment back here or on the blog to let me know if there are any changes I need to make for macs?
Install MacPorts and then run sudo port install clojure
I once created a package called ClojureX that was partly based on Mark's article. It's not actively maintained anymore (at least not by me), but there's no reason it wouldn't work:
http://github.com/citizen428/ClojureX

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