I totally follow this guid, but I still did not get the info" contract mined! address: xxx". I add a else{ console.log(e) into var greeter = greeterContract.new(_greeting,{from: eth.accounts[0], data: greeterCompiled.greeter.code, gas: 4000000}, function(e, contract){   if(!e) {      if(!contract.address) {       console.log("Contract transaction send: TransactionHash: " + contract.transactionHash + " waiting to be mined...");      } else {       console.log("Contract mined! Address: " + contract.address);       console.log(contract);     }    } })

I got Line 1:419 unexpexcted token else

Any Idea. I really appreciate