Details about Rails paperclip error: ‘There was an error processing the thumbnail for paperclip-reprocess’

I got this error while working with paperclip. The project was stable and I have no idea why this error happens at this point of time.

[paperclip] An error was received while processing: #
[paperclip] An error was received while processing: #<Paperclip::PaperclipError: There was an error processing the thumbnail for paperclip-reprocess20110822-2281-19969sz

So I was lazy to fix the error, and find that I have no imagemagick installed in my new system. After installing ‘imagemagick’ it got fixed.

$ sudo apt-get update
$ sudo apt-get install imagemagick --fix-missing
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Install thinking Sphinx in Ubuntu 13.04 and set up in Rails 3.2

Check sphinx is already installed in your system,

$ search 

If you have already sphinx installed then it will show the sphinx version and other info, else it shows ubuntu information to install.

Download thinking sphinx from
here,

$ tar -xzf sphinx-2.0.8-release.tar.gz
$ cd sphinx-2.0.8-release/
$ ./configure
$ make
$ sudo make install

Type,

$ search 

it will show the sphinx release and the other information.
Add the sphinx gem into your Gemfile

gem 'thinking-sphinx'

Do bundle install

$ bundle install

I assume you already made the model / controller code for sphinx. Else see this
Index all your records

$ rake ts:index -t

While indexing sphinx will generate the configuration file inside RAILS_ROOT/config/config/development.sphinx.conf

If you need to generate only configuration file not indexing you can use this command

$ rake ts:configure -t

Run sphinx searchd daemon

$ rake ts:start -t

You can stop sphinx searchd daemon

$ rake ts:stop -t

You can reindex so that sphinx will re index all records without creating a configuration file.

$ rake ts:reindex -t

Enjoy Sphinx searching!

Install Skype in Ubuntu 13.04

For 32 bit:

Install Dependencies.

$ sudo apt-get install libqt4-webkit

Download and install Skype

$ wget -O skype-linux.deb http://download.skype.com/linux/skype-ubuntu-lucid_4.2.0.11-1_i386.deb
$ sudo dpkg -i skype-linux.deb
$ sudo apt-get -f install

Open the terminal and type

$ skype

Done.

Reference:
noobslab install skype