通过truffle migrate部署合约的时候遇到下面的错误：
192:truffleProject daisy$ truffle migrate
Using network 'development'.
Running migration: 1_initial_migration.js
Deploying Migrations...
... undefined
Error encountered, bailing. Network state unknown. Review successful transactions manually.
Error: authentication needed: password or unlock
at Object.InvalidResponse (/usr/local/lib/node_modules/truffle/build/cli.bundled.js:37295:16)
at /usr/local/lib/node_modules/truffle/build/cli.bundled.js:224765:36
at /usr/local/lib/node_modules/truffle/build/cli.bundled.js:66971:11
at /usr/local/lib/node_modules/truffle/build/cli.bundled.js:208348:9
at XMLHttpRequest.request.onreadystatechange (/usr/local/lib/node_modules/truffle/build/cli.bundled.js:209773:13)
at XMLHttpRequestEventTarget.dispatchEvent (/usr/local/lib/node_modules/truffle/build/cli.bundled.js:67130:18)
at XMLHttpRequest._setReadyState (/usr/local/lib/node_modules/truffle/build/cli.bundled.js:67420:12)
at XMLHttpRequest._onHttpResponseEnd (/usr/local/lib/node_modules/truffle/build/cli.bundled.js:67575:12)
at IncomingMessage.<anonymous> (/usr/local/lib/node_modules/truffle/build/cli.bundled.js:67535:24)
我们看到错误提示：
Error: authentication needed: password or unlock
所我们需要unlock一个账户
命令：personal.listAccounts 可以显示已有的账户列表，我们从中选一个解锁即可。
如果当前已有账号是空，运行 personal.newAccount创建账号
> personal.newAccount('12345678')
// 参数为账号密码
INFO [08-24|23:48:14] New wallet appeared url=keystore:///Users/daisy/mychain… status=Locked
"0x544ea0a0b7cf0aba03a77d602d26eb3828f85c9b"
> personal.listAccounts
["0xd5659f10d3f52bb765703c97c6de1b0370000f51", "0x85d019bf41d5939c34c03ea3ed36236772a99567", "0x435299f6a0e40c9ea4760bc1a318f35e2d9b2d83", "0x26ee5c23871ed3412d958b893ace03eae6e172e7", "0x544ea0a0b7cf0aba03a77d602d26eb3828f85c9b"]
然后运行personal.unlockAccount('0x544ea0a0b7cf0aba03a77d602d26eb3828f85c9b', '12345678', 1000) 来解锁账号
- 第一个参数为账号id;
- 第二个参数为创建账号密码
- 第三个参数为解锁账号的时间，即1000秒操作账号无需输入密码
解锁完之后再执行truffle migrate即可成功
