# Unable to install sexp gem

**URL:** <https://www.ruby-forum.com/t/unable-to-install-sexp-gem/130291>\
**Category:** Ruby\
**Created:** [February 27, 2008, 4:44am UTC](https://www.ruby-forum.com/t/unable-to-install-sexp-gem/130291 "2008-02-27T04:44:05Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![vishyanand](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/v/e36b37/32.png) [@vishyanand](https://www.ruby-forum.com/u/vishyanand)\
**Post date:** [February 27, 2008, 4:44am UTC](https://www.ruby-forum.com/t/unable-to-install-sexp-gem/130291/1 "2008-02-27T04:44:05Z")

</div>

I am getting error while installing sexp-0.1.gem  
(RuntimeError)  
Error instaling sexp-0.1.gem:  
sexp requires multi = 0.1

My ruby version is  
“ruby 1.8.5 (2006-12-25 patchlevel 12) [i386-mswin32]”

What could be the reason?  
Please help  
thanks