[ns] [code omitted because of length] error

[wee liang]

why do i have a error when i run
$./configure
$./make clean
$./make
$make install
 
[code omitted because of length]
: invalid command name "Agent/UDP/PDP"
    while executing
"Agent/UDP/PDP set best_server_  0"
 
can any1 help?