Need help debugging this error:

In file included from main.cpp : $4$ :

LinkedList.h : In instantiation of $$void LinkedList::PrintReverse$()[$with T $=$ int$]$ :

main.cpp : $35$ : $20$ : required from here

LinkedList.h : $135$ : $18$ : error : ISO C$++$ forbids variable length array$[-$Wvla$]$

$135|$ T listdata$[$this$->$NodeCount$()]$;

$|^$ ~~~~~~~

Header file:

#include

#include

using namespace std;

template

struct Node $\{$

Node $*$ next;

T data;

$\}$;

template class LinkedList $\{$

public:

Node $*$ first;

Node $*$ last;

LinkedList $()\{$

first $=$ NULL;

last $=$ NULL;

$\}$

void AddHead$($T data$)\{$

if $($first $==$ NULL$)\{$

Node$*$ temp $=$ new Node$()$;

temp$->$data $=$ data;

temp$->$next $=$ NULL;

first $=$ temp;

last $=$ temp;

$\}$

else $\{$

Node$*$ temp $=$ new Node;

temp$->$data $=$ data;

temp$->$next $=$ first;

first $=$ temp;

$\}$

$\}$

void AddTail$($T data$)\{$

if $($last $==$ NULL$)\{$

Node$*$ temp $=$ new Node$()$;

temp$->$data $=$ data;

temp$->$next $=$ NULL;

first $=$ temp;

last $=$ temp;

$\}$

else $\{$

Node$*$ temp $=$ new Node$()$;

temp$->$data $=$ data;

temp$->$next $=$ NULL;

last$->$next $=$ temp;

last $=$ temp;

$\}$

$\}$

void AddNodesHead$($T data$[],$ int size$)\{$

for $($int i $=0$; i $<$ size; i $+=1)\{$

this$->$AddHead$($data$[$i$])$;

$\}$

$\}$

void AddNodesTail$($T data$[],$ int size$)\{$

for $($int i $=0$; i $<$ size; i $+=1)\{$

this$->$AddTail$($data$[$i$])$;

$\}$

$\}$

int NodeCount$()\{$

if $($first $==$ NULL$)\{$

return $0$;

$\}$

Node$*$ temp $=$ first;

int count $=0$;

while $($temp $!=$ last$)\{$

count $+=1$;

temp $=$ temp$->$next;

$\}$

return count;

$\}$

void PrintForward$()\{$

if $($first $==$ NULL$)\{$

cout $<<$ "List IS empty!!!" $<<$ endl;

$\}$

Node$*$ temp $=$ first;

do $\{$

cout $<<$ temp$->$data $<<"->"$;

temp $=$ temp$->$next;

$\}$ while $($temp $!=$ last$)$;

cout $<<$ "NULL" $<<$ endl;

$\}$

$///$