Node JS:意外的令牌ILLEGAL

我试图启动服务器,但我收到此错误

/home/ceddy/syd/sydjs/node_modules/keystone/admin/server/middleware/logError.js:7
    var msg = `[${endpoint}]`;
              ^
SyntaxError: Unexpected token ILLEGAL
at exports.runInThisContext (vm.js:73:16)
at Module._compile (module.js:443:25)
at Module._extensions..js (module.js:478:10)
at Object.require.extensions.(anonymous function) [as .js] (/home/ceddy/syd/sydjs/node_modules/babel-register/lib/node.js:138:7)
at Module.load (module.js:355:32)
at Function.Module._load (module.js:310:12)
at Module.require (module.js:365:17)
at require (module.js:384:17)
at Object.createDynamicRouter (/home/ceddy/syd/sydjs/node_modules/keystone/admin/server/app/createDynamicRouter.js:65:21)
at createApp (/home/ceddy/syd/sydjs/node_modules/keystone/server/createApp.js:63:72)
at [object Object].initExpressApp (/home/ceddy/syd/sydjs/node_modules/keystone/lib/core/initExpressApp.js:5:46)
at [object Object].start (/home/ceddy/syd/sydjs/node_modules/keystone/lib/core/start.js:47:7)
at Object. (/home/ceddy/syd/sydjs/keystone.js:94:10)
at Module._compile (module.js:460:26)
at Object.Module._extensions..js (module.js:478:10)
at Module.load (module.js:355:32)
at Function.Module._load (module.js:310:12)
at Function.Module.runMain (module.js:501:10)
at startup (node.js:129:16)
at node.js:814:3

当我看到第7行似乎导致错误的文件时,我没有看到任何错误,比如控制台说...我在这里遗漏了什么,请问是什么原因？提前致谢

module.exports = function (req, res, next) {
res.logError = function logError(endpoint, description, err) {
    if (arguments.length === 2 && typeof description !== 'string') {
        err = description;
        description = null;
    }
    var msg = `[${endpoint}]`;
    msg += description ? (` ${description}:`) : ' error:';
    if (err) {
        console.log(msg, err.message, '\n' + err.stack);
    } else {
        console.log(msg);
    }
};
next();
};

Vlad Miller.. 5

您尝试使用的语法是新ES2015标准的一部分.确保使用支持模板字符串的节点版本

我建议至少节点4.2.3因为它是LTS版本而没有iojs因为它合并回节点.

您尝试使用的语法是新ES2015标准的一部分.确保使用支持模板字符串的节点版本

我建议至少节点4.2.3因为它是LTS版本而没有iojs因为它合并回节点.