# Mkmf.rb missing? **URL:** \ **Category:** Ruby\ **Created:** [July 4, 2006, 10:34pm UTC](https://www.ruby-forum.com/t/mkmf-rb-missing/97103 "2006-07-04T22:34:49Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![agnathan](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/919ad9/32.png) [@agnathan](https://www.ruby-forum.com/u/agnathan)\ **Post date:** [July 4, 2006, 10:34pm UTC](https://www.ruby-forum.com/t/mkmf-rb-missing/97103/1 "2006-07-04T22:34:49Z")
Hi everyone, I just installed ruby on Ubuntu using apt-get, and it appears that mkmf.rb Is missing. I’m trying to find a place to get the file, but I’m having a hard time - could someone please tell me what I should do? Thanks! Daniel ---
**Author:** ![agnathan](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/919ad9/32.png) [@agnathan](https://www.ruby-forum.com/u/agnathan)\ **Post date:** [July 4, 2006, 10:41pm UTC](https://www.ruby-forum.com/t/mkmf-rb-missing/97103/2 "2006-07-04T22:41:27Z")
On 7/4/06, Daniel H. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > Hi everyone, > > I just installed ruby on Ubuntu using apt-get, and it appears that mkmf.rb > Is missing. I’m trying to find a place to get the file, but I’m having a > hard time - could someone please tell me what I should do? Ubuntu has split Ruby into many, many packages. You need the ruby-dev package as well etc. Here are some instructions that might help: > **[Ubuntu Forums](https://ubuntuforums.org/showthread.php?t=191701)** > > A help and support forum for Ubuntu Linux. ---
**Author:** ![agnathan](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/919ad9/32.png) [@agnathan](https://www.ruby-forum.com/u/agnathan)\ **Post date:** [July 4, 2006, 11:06pm UTC](https://www.ruby-forum.com/t/mkmf-rb-missing/97103/3 "2006-07-04T23:06:05Z")
Sweet thanks!