I am trying to install 802.11e, and i got

$ ./configure
./configure: line 994: config.log: Permission denied

$ make depend
Makefile:74: *** commands commence before first target.  Stop.


$ make
Makefile:74: *** commands commence before first target.  Stop.


message.
and when I tried to run multi_udpflows.tcl file I got the following errors.
How can I sort it out? Please, Help me!

$ ./ns multi_udpflows.tcl
num_nodes is set 5
wired node 0 created
wired node 1 created
wired node 2 created
invalid command name "Mac/802_11e"
    while executing
"Mac/802_11e create _o54 "
    invoked from within
"catch "$className create $o $args" msg
    invoked from within
"if [catch "$className create $o $args"
if [string match "__FAILED_SHADOW_OBJEC
delete $o
return ""
}
global errorInfo
error "class $..."
    (procedure "new" line 3)
    invoked from within
"new $mactype"
    (procedure "_o44" line 10)
    (Node/MobileNode add-interface line
    invoked from within
"$node add-interface $chan $propInstanc
 $phyType_ $antType_ $topoInstance_  $i
    (procedure "_o3" line 70)
    (Simulator create-wireless-node lin
    invoked from within
"_o3 create-wireless-node 1.0.0"
    ("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 1.0.0"
    invoked from within
"set BS(0) [$ns node 1.0.0]"
    (file "multi_udpflows.tcl" line 91)

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