松露迁移错误

Question

我无法迁移truffle init随附的标准合同。 Here's我做什么：

truffle init 
truffle compile 
truffle migrate 

，这就是它生成时我初始化：

但是，当我迁移，下面的错误列表中显示：

Error: Invalid JSON RPC response: "" 
at Object.InvalidResponse (/usr/local/lib/node_modules/truffle/node_modules/web3/lib/web3/errors.js:35:16) 
at XMLHttpRequest.request.onreadystatechange (/usr/local/lib/node_modules/truffle/node_modules/web3/lib/web3/httpprovider.js:115:32) 
at XMLHttpRequestEventTarget.dispatchEvent (/usr/local/lib/node_modules/truffle/node_modules/xhr2/lib/xhr2.js:64:18) 
at XMLHttpRequest._setReadyState (/usr/local/lib/node_modules/truffle/node_modules/xhr2/lib/xhr2.js:354:12) 
at XMLHttpRequest._onHttpRequestError (/usr/local/lib/node_modules/truffle/node_modules/xhr2/lib/xhr2.js:544:12) 
at ClientRequest.<anonymous> (/usr/local/lib/node_modules/truffle/node_modules/xhr2/lib/xhr2.js:414:24) 
at emitOne (events.js:96:13) 
at ClientRequest.emit (events.js:188:7) 
at Socket.socketErrorListener (_http_client.js:309:9) 
at emitOne (events.js:96:13) 

Answer 1

As webjunkie评论：

1. testrpc
2. 检查truffle.js配置端口和IP设置为默认的“localhost：8545”
3. truffle migrate