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no such file to load — mkmf

Daniel — Fri, 02 Oct 2009 10:05:27 +0000

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

Daniel — Fri, 04 Sep 2009 08:01:43 +0000

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

Daniel — Thu, 03 Sep 2009 13:36:58 +0000

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

Daniel — Thu, 12 Feb 2009 22:47:41 +0000

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

Daniel — Sun, 25 Jan 2009 09:51:38 +0000

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.

Daniel — Sat, 24 Jan 2009 14:48:44 +0000

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

Daniel — Thu, 18 Dec 2008 22:59:45 +0000

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.