I am running TextMate version-beta.8.5 on a Mac with OS10.11.2, and texlive 2015.  

TexMaker, TexShop, and latex on terminal all work fine with the same .tex file. But TextMate complains that: 

       "! LaTeX Error: File `xy.sty' not found."

The file xy.sty is properly located in the texlive system.

It must be a trivial problem except that I cannot figure it out. I appreciate your help,

Luke W. Mo

Virginia Tech