why cant i use towel root ?

[AC Question]

I have a galaxy nexus I tried to root my phone on towelroot and it keep saying phone not supported I changed the codes and it still didn't work.what am I suppose to do ?

 

[Reggie123]

I have a galaxy nexus I tried to root my phone using towel root but it keep saying phone not supported I tried changing the codes but it still didn't work.what aim I suspose to do ?