What does this error mean and how do I fix it? "make: *** [lexer] Error 127"

[claudius2]

I'm an absolute beginner so please understand that when you reply.

I'm running the latest version of gcc 4.8.2 and I followed these instruction on installing lax http://www.geeksww.com/tutorials/ope...untu_linux.php

I am running this on a virtual box

[steeldriver]

Hello and welcome to the forums

flex is available as a pre-compiled package from the standard Ubuntu repository - there should be no need to build it from a downloaded source tarball

If you really want to go ahead and build it, we will need a lot more context about the error message