# Get\_type\_metrics': UnableToReadFont '(null)'

**URL:** <https://www.ruby-forum.com/t/get-type-metrics-unabletoreadfont-null/148681>\
**Category:** Rails\
**Created:** [September 16, 2008, 6:33am UTC](https://www.ruby-forum.com/t/get-type-metrics-unabletoreadfont-null/148681 "2008-09-16T06:33:14Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![mokkai](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/c2a13f/32.png) [@mokkai](https://www.ruby-forum.com/u/mokkai)\
**Post date:** [September 16, 2008, 6:33am UTC](https://www.ruby-forum.com/t/get-type-metrics-unabletoreadfont-null/148681/1 "2008-09-16T06:33:14Z")

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my os windows-xp  
rails -1.2.3  
i got this error with rmagick

./script/…/config/…/vendor/plugins/captcha\_generator/lib/captcha\_generator.rb:32:in  
`get_type_metrics': UnableToReadFont`(null)’ (Magick::ImageMagickError)

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<div class="post-metadata">

**Author:** ![mokkai](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/c2a13f/32.png) [@mokkai](https://www.ruby-forum.com/u/mokkai)\
**Post date:** [September 16, 2008, 11:11am UTC](https://www.ruby-forum.com/t/get-type-metrics-unabletoreadfont-null/148681/2 "2008-09-16T11:11:19Z")

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Pokkai D. wrote:

> my os windows-xp  
> rails -1.2.3  
> i got this error with rmagick
> 
> ./script/…/config/…/vendor/plugins/captcha\_generator/lib/captcha\_generator.rb:32:in  
> `get_type_metrics': UnableToReadFont`(null)’ (Magick::ImageMagickError)

vendor/plugins/captcha\_generator/lib/captcha\_generator.rb:59:in `write': RegistryKeyLookupFailed`CoderModulesPath’ (Magick::ImageMagickError)

can anyn one help me