well, I feel like an idiot.
it was an error on my part, from this bit of code:
public Animator Animator{
get{ return this.Animator; }
}
this.Animator was supposed to be this.animator.
I’m stupid 
this can be closed
when I make a call to SetLookAtWeight, Unity Crashes.
The relevant parts of the crash report would be:
ProblemType: Crash
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Dec 15 17:18:50 2016
DistroRelease: Ubuntu 16.04
ExecutablePath: /opt/Unity/Editor/Unity
ExecutableTimestamp: 1480093875
ProcCmdline: /opt/Unity/Editor/Unity -no-throttle-updates
ProcCwd: /home/dave/Documents/unity_game_dev/Third Person
ProcEnviron:
TERM=xterm-256color
SHELL=/bin/bash
PATH=(custom, user)
LANG=en_US.UTF-8
LANGUAGE=en_US
XDG_RUNTIME_DIR=
ProcStatus:
Name: Unity
State: S (sleeping)
Tgid: 3138
Ngid: 0
Pid: 3138
PPid: 3137
TracerPid: 0
Uid: 1000 1000 1000 1000
Gid: 1000 1000 1000 1000
FDSize: 256
Groups: 4 24 27 30 46 113 128 1000
NStgid: 3138
NSpid: 3138
NSpgid: 3137
NSsid: 2988
VmPeak: 2515268 kB
VmSize: 2515268 kB
VmLck: 0 kB
VmPin: 0 kB
VmHWM: 362668 kB
VmRSS: 362668 kB
VmData: 1593912 kB
VmStk: 8196 kB
VmExe: 68768 kB
VmLib: 216076 kB
VmPTE: 2184 kB
VmPMD: 60 kB
VmSwap: 0 kB
HugetlbPages: 0 kB
Threads: 106
SigQ: 0/31340
SigPnd: 0000000000000000
ShdPnd: 0000000000000000
SigBlk: 0000000000000000
SigIgn: 0000000000001000
SigCgt: 00000005a08000ec
CapInh: 0000000000000000
CapPrm: 0000000000000000
CapEff: 0000000000000000
CapBnd: 0000003fffffffff
CapAmb: 0000000000000000
Seccomp: 0
Cpus_allowed: ff
Cpus_allowed_list: 0-7
Mems_allowed: 00000000,00000001
Mems_allowed_list: 0
voluntary_ctxt_switches: 10740
nonvoluntary_ctxt_switches: 4722
Signal: 11
Uname: Linux 4.4.0-31-generic x86_64
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
Core was generated by `/opt/Unity/Editor/Unity -no-throttle-updates’.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x0000000040eba7ec in ?? ()
[Current thread is 1 (Thread 0x7fd8e3c81a80 (LWP 3138))]
(gdb) where
#0 0x0000000040eba7ec in ?? ()
#1 0x0000000000000000 in ?? ()
(gdb) q