Question

我的Blackhole-AODV程序之前运行顺利，没有错误，我记录了相当不。结果来自模拟。但是在安装xgraph之后（我认为在xgraph中绘制结果会很好而不是通过手动操作）我的程序停止工作。它显示了一些长错误，我不知道如何解决它。请帮助我试着在网上找到很多解决方案（到处都有同样的问题，但没有解决方案!!!）。错误如下： -

num_nodes is set 50
warning: Please use -channel as shown in tcl/ex/wireless-mitf.tcl
INITIALIZE THE LIST xListHead

(_o872 cmd line 1)
invoked from within
"_o872 cmd addr"
invoked from within
"catch "$self cmd $args" ret"
invoked from within
"if [catch "$self cmd $args" ret] {
set cls [$self info class]
global errorInfo
set savedInfo $errorInfo
error "error when calling class $cls: $args" $..."
(procedure "_o872" line 2)
(SplitObject unknown line 2)
invoked from within
"_o872 addr"
("eval" body line 1)
invoked from within
"eval $node addr $args"
("default" arm line 2)
invoked from within
"switch -exact $routingAgent_ {
 DSDV {
 set ragent [$self create-dsdv-agent $node]
 }
DSR {
$self at 0.0 "$node start-dsr"
}
AODV {
set ragent [$self cre..."
(procedure "_o3" line 14)
(Simulator create-wireless-node line 14)
invoked from within
"_o3 create-wireless-node"
("eval" body line 1)
invoked from within
"eval $self create-wireless-node $args"
(procedure "_o3" line 23)
(Simulator node line 23)
invoked from within
"$ns_ node"
("for" body line 2)
invoked from within
"for {set i $val(nnaodv) } {$i<$val(nn) } {incr i} {  
  set node_($i) [$ns_ node]
  $node_($i) random-motion 1;
  $node_($i) color red
  $ns_ at 0.0 "$nod..."
  (file "atk20.tcl" line 69)