cannot resume dead coroutine

I get this error from parallel:22 rednet:287
with this code:

print("start")
rednet.open("right")
if rednet.broadcast("ping") then
print("broadcast")
end
rednet.receive(1)

rednet.close() does not help

I think (not sure) this code worked when I was alone on the server and started failing when someone joined.

How can I resolve this or what is wrong?

Seems like it's having a heart attack while trying to read from a redstone port.
Are you using bundled cable or a modem?

If modem, do you have any bundled cable connected?

Edit: Could also be a timer triggering this.

Just a computer, diskdrive, a floppy and a wireless mining turtle…

Does the device you're running this code on have a modem on it's right side? Which is to say, are you running this on a computer that doesn't have a modem attached on the right side?

It does I'm running it on a turtle
It doesn't crash when I say rednet.receive() instead of rednet.receive(2)

rednet.open("right")
while true do
print("receive")
a,b,c = rednet.receive(2)
print(a,b,c)
end

now works

rednet.open("right")
while true do
if rednet.broadcast("ping") then
print("braodcasting")
end
sleep(2)
end

doesn't

111
Press any key to continue

or

bios -1 bios -1 (or bios -1 rednet 287) cannot resume dead coroutine
Press any key to continue

or

shell:166 Expected number
111

or
rednet 277 bios -1 rednet 369 vm error: java.lang.arrayIndexOutOfBoundsException (152) 10

are the errors I get

And I do not get why the errors don't remain the same, since the code remains the same…

Other turtles (even non wireless) seem to be affected too…

im having the same trouble with this code, but running from a computer not a turtle, and the problem is that whenever i press one of the corresponding keys to wirelessly move my turtle I get that error you got on the computer that was running this code.

while true do
   event, key = os.pullEvent("key")
   if key == keys.up then
	rednet.send(turtle,"up")
   elseif key == keys.down then
	rednet.send(turtle,"down")
   elseif key == keys.d then
	rednet.send(turtle,"right")
   elseif key == keys.a then
	rednet.send(turtle,"left")
   elseif key == keys.w then
	rednet.send(turtle,"forward")
   elseif key == keys.s then
	rednet.send(turtle,"back")
   elseif key == keys.q then
	break
   elseif key == keys.left then
	rednet.send(turtle,"break")
   elseif key == keys.right then
	rednet.send(turtle,"place")
   elseif key == 2 then
	rednet.send(turtle,"1")
   elseif key == 3 then
	rednet.send(turtle,"2")
   elseif key == 4 then
	rednet.send(turtle,"3")
   elseif key == 5 then
	rednet.send(turtle,"4")
   elseif key == 6 then
	rednet.send(turtle,"5")
   elseif key == 7 then
	rednet.send(turtle,"6")
   elseif key == 8 then
	rednet.send(turtle,"7")
   elseif key == 9 then
	rednet.send(turtle,"8")
   end

EDIT: The problem is fixed, all i did though was close the world then go back in.