Redmine

You have to install rmagick:

gem rmagick

Not sure you need rmagick but you need to have ImageMagick installed and its convert executable in PATH of the account running the redmine instance.

ImageMagick already installed, gem rmagick install, but it did not affect. Explain what actions I have to spend, this is my first experience working with Redmine. Thank you.

Anton Soya wrote:

ImageMagick already installed, gem rmagick install, but it did not affect. Explain what actions I have to spend, this is my first experience working with Redmine. Thank you.

Try running convert -version.

http://www.redmine.org/boards/2/topics/2699?r=35942#message-35942

Please don't mix everything.

Thumbnails generation don't use RMagick, see #12529.

RMagick available - ok
But not affect!

Do you people read my comments?

Sorry, did not see

convert -version
Version: ImageMagick 6.6.0-4 2012-05-03 Q16 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2010 ImageMagick Studio LLC
Features: OpenMP

P.S. bug in this site, i do not write quote, "Internal error"

Any error in production.log?

• has write permission to tmp and its subdirs?
• can run convert command?

You can try to set the full path to the convert executable in config/configuration.yml (see source:tags/2.3.0/config/configuration.yml.example#L171).

I win! :)
Problem was in permission /tmp/thumbnails
thanks
сlose

In my case i noticed that production.log reports the following error:

Imagemagick's convert binary (convert) not available
  Couldn't find template for digesting: people/avatar

So i checked and found that 'convert' command works in the redmine htdocs path and even the path to 'convert' binary file is saved in the configuration.yml under the "imagemagick_convert_command:" key but the error is persistent!

In "/apps/redmine/htdocs/config/configuration.yml" i changed the key/value "imagemagick_convert_command:" position to "production:" section with the correct path to 'convert' binary and restarted apache server, the problem was solved and thumbnails now are showing.