Q: Why do I get a LaTeX error about that says "doublespace.sty not found"?
Answer
If you try and use the LaTeX package doublespace, you might get the following error:
! LaTeX Error: File `doublespace.sty' not found.
The doublespace package is obsolete and has been removed from most distributions. Consider switching to the setspace package, which is its replacement and is found in all LaTeX distributions. For more information, see: