LeopoldoD

have you guys deployed their contracts to the network (testrpc, geth etc.)? - truffle migrate

Recommendations: - Check Metamask status (pointing out to port 8545) - Reset migrations ("truffle migrate --reset")

are your contracts deployed to the network? Some lines should appear in testrpc indicating the contracts are successfully deployed. For example: Transaction: 0x7403cc1ce6bb29264732e5d677e8b3c2f96cbba039736ddd14eb9e4a3c09be89 Contract created: 0x6f9379db54985b6d25da140dd7c41a8d6e50f579 Gas usage: 160259 Block...

Then your contracts are not deployed to testrpc, therefore, you can not interact with them. Make sure Metamask is listening to the same port as testrpc is running (default port...

Are you running the standard contracts from truffle box or have you added your own contracts?

I have not faced this issue, perhaps review this [link](https://github.com/trufflesuite/truffle/issues/271). Your Metamask balance should be 100 for each testrpc account (by default), try importing a different private key in Metamask.

Ok, you are using the default Metamask account. You need to import a new account: * From testrpc, copy the first private key. The list of public and private keys...