Problem with deploying to a single organization Hyperledger Fabric

Question

I am following Hyperledeger Composer tutorials. It is working upto step 6, but throwing the following error in step 7:

robert@ubuntu:~/tutorial-network$ composer runtime install -c PeerAdmin@fabric-network -n tutorial-network ⠋ Installing runtime for business network tutorial-network. This may take a minu⠙ Installing runtime for business network tutorial-network. This may take a minu⠹ Installing runtime for business network tutorial-network. This may take a minu⠸ Installing runtime for business network tutorial-network. This may take a minu⠼ Installing runtime for business network tutorial-network. This may take a minu⠴ Installing runtime for business network tutorial-network. This may take a minu⠦ Installing runtime for business network tutorial-network. This may take a minu⠧ Installing runtime for business network tutorial-network. This may take a minu⠇ Installing runtime for business network tutorial-network. This may take a minu⠏ Installing runtime for business network tutorial-network. This may take a minu⠋ Installing runtime for business network tutorial-network. This may take a minu⠙ Installing runtime for business network tutorial-network. This may take a minu⠹ Installing runtime for business network tutorial-network. This may take a minu⠸ Installing runtime for business network tutorial-network. This may take a minu⠼ Installing runtime for business network tutorial-network. This may take a minu⠴ Installing runtime for business network tutorial-network. This may take a minu⠦ Installing runtime for business network tutorial-network. This may take a minu⠧ Installing runtime for business network tutorial-network. This may take a minu⠇ Installing runtime for business network tutorial-network. This may take a minu⠏ Installing runtime for business network tutorial-network. This may take a minu⠋ Installing runtime for business network tutorial-network. This may take a minu⠙ Installing runtime for business network tutorial-network. This may take a minu✖ Installing runtime for business network tutorial-network. This may take a minute... Error: Error trying install composer runtime. Error: No valid responses from any peers. Response

Can someone pls tell me why the command is failing?

Answer 1

It appears to me that  the proposal is not being signed by an admin, so, the peer is rejecting it claiming (correctly) that the signature is not valid.

Or maybe your connection-profile is wrong. Check connection between machine you running composer on and containers like wget <url-of-your-container>. You should see connected on every peer.