send: spawn id exp1025 not open in tcl/expect
my tcl framework give exception - send: spawn id exp1025 not open - while executing command - exp_send "echo $ABC". Though this is very sporadic in nature and frequency of occurrence is very less, but still i need to fix it.
I have following queries
- why does this occur so sporadically?
- how do i fix it?
- what shall i do to avoid such exceptions in future.
Note : The function which runs the exp_send command always spawn a bash whenever it is called.