rednet:350: string expected!

wheni run my "rednet repeater" for boosting rang i ge the error in the title
the code is

while true do
rednet.open("top")
M = rednet.receive()
rednet.close("top")
sleep(2)
rednet.open("Right")
rednet.broadcast(M)
end

Anyone know why its not working ive tried putting the rednet.receive IN rednet.broadcast but nothing has worked!

rednet.receive returns three values: the id of the sender, the message and the distance from the sender. You want to use the message, so you have to store it:

local id, msg = rednet.receive()

And then you can use the second variable, wich contains the received message.

Also, the second rednet.open is not needed, and the side is wrong, it should be "right".

still got error same one too
new code:

rednet.open("top")
local id,msg=rednet.receive()
rednet.broadcast(local)

The variable that has the message is the second one (local doesn't count, it's not a variable). So it should be:

rednet.open("top")
local id, msg = rendet.receive()
rednet.broadcast(msg)

Works thanks!!!