[ns] SplitObject error after adding a simple print function

[Asraf]

I am trying to print out the route table, and rt_print function in aodv.cc
plus this code on in AODV::command:

int
AODV::command(int argc, const char*const* argv) {
...
...
else if (strcasecmp(argv[1], "rt_print") == 0) {// print routing tables to a
file
        FILE *fp = fopen("route.txt","a");
        printf("\nRouting table at node %d\n", addr());
        fclose(fp);

        return TCL_OK;
        } 
}
 
and call this in my TCL like this:

for {set i 1} {$i < $nodes} {incr i} {
        $ns_ at 10.0 "$node_($i) rt_print"
}

But I get an error:

ns: _o32 rt_print:
    (_o32 cmd line 1)
    invoked from within
"_o32 cmd rt_print"
    invoked from within
"catch "$self cmd $args" ret"
    (procedure "_o32" line 2)
    (SplitObject unknown line 2)
    invoked from within
"_o32 rt_print"


Does anyone know how to solve this SplitObject error. From my understanding,
SplitObject error is caused by no having a corresponding C++ object used in
TCL. Any pointers?? 

Or If I want to print out the routing table in AODV, how do I do it?

Many Thanks,
Asraf.

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