semanticpool

I got the following error when i wanted to install passenger via

gem install passenger

on my ubuntu machine:

no such file to load — mkmf

To fix this i had to install the ruby modules via

sudo apt-get install ruby1.8-dev

I got the following error when trying to create a ssl-certificate on Ubuntu 8.04:

apache2-ssl-certificate: command not found

The problem was that there is a new command to create such a certificate:

sudo apt-get install ssl-cert
sudo mkdir /etc/apache2/ssl
sudo /usr/sbin/make-ssl-cert /usr/share/ssl-cert/ssleay.cnf /etc/apache2/ssl/apache.pem

I got the following error:

error: Unexpected HTML page found at http://trac-hacks.org/svn/accountmanagerplugin/0.10

To fix it, you need to update setuptools via

sudo easy_install -U setuptools

I’ve gotten this error after i’ve installed ImageMagick (from source) and RMagick (using gem) on my Debian system

libMagickCore.so.2: cannot open shared object file: No such file or directory – /usr/lib/ruby/gems/1.8/gems/rmagick-2.8.0/lib/RMagick2.so

To get rid of this error i executed

ldconfig /usr/local/lib

After i made a new Apache installation on Ubuntu in whose httpd.conf file i use the

RewriteEngine on

command, i got the following error, when starting Apache:

Invalid command ‘RewriteEngine’

To fix this problem, i executed

sudo a2enmod rewrite

to enable the Rewrite module.

I needed to install phpize on my Ubuntu system

The phpize command is used to prepare the build environment for a PHP extension. [...]

and got the following error:

phpize not found

To solve this problem i needed to install the php5-dev package

sudo apt-get install php5-dev

I got the error

no such file to load — mysql

when running my Rails application. After that i tried to install the mysql gem module using

sudo gem install mysql

but it gave me an error saying:

ERROR:  Error installing mysql:
ERROR: Failed to build gem native extension.

I then included a parameter to the install command which showed the path to the mysql_config file

sudo gem install mysql --with-mysql-config=/usr/local/mysql/bin/mysql_config

That did the trick.

I got the following error message when trying to run a Rails application with passenger after updating Rails:

undefined method `cache_template_loading=’ for ActionView::Base:Class

I had to comment or remove the line

config.action_view.cache_template_loading = true

in the production.rb file to fix the problem.

I executed

gem install rmagick

and got the following error:

checking for Magick-config... no
Can't install RMagick 2.3.0. Can't find Magick-config in [...]

I had to install the libmagick9-dev package with

apt-get install libmagick9-dev

to solve this problem.