error installing RDoc documentation: incompatible encoding regexp match

落爺英雄遲暮 提交于 2019-12-03 06:34:41

I had a similar problem on Ubuntu and updating rubygems itself solved the problem for me. You can do that by entering the following at the command line:

gem update --system

Also, you can always skip the doc generation by using:

--no-rdoc --no-ri

when installing the gem.

On Windows, this worked for me:

> set RDOCOPT="--encoding=UTF-8"
> gem install heroku
George Shaw

michael.rp almost had it, but no quotes on the environment string for Windows. The same solution for Linux appears in the link supplied by jerry. For Windows:

set RDOCOPT=--encoding=UTF-8

I put this in the RubyInstaller\Ruby1.9.3\setup_environment.bat file so it is always there.

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