Question

当我推送到heroku master时，我的部署失败，并出现以下错误：

remote: { SyntaxError: /tmp/build_396711075a2ae75358d2c942f9c73c1c/.heroku/node/lib/node_modules/npm/node_modules/cmd-shim/index.js: Legacy octal literals are not allowed in strict mode (166:15)
remote: 
remote:   164 | function chmodShim (to, cb) {
remote:   165 |   var then = times(2, cb, cb)
remote: > 166 |   fs.chmod(to, 0755, then)
remote:       |                ^
remote:   167 |   fs.chmod(to + ".cmd", 0755, then)
remote:   168 | }
remote:   169 | 
remote:     at Parser.raise (/tmp/build_396711075a2ae75358d2c942f9c73c1c/node_modules/@babel/parser/lib/index.js:6344:17)
remote:     at Parser.readNumber (/tmp/build_396711075a2ae75358d2c942f9c73c1c/node_modules/@babel/parser/lib/index.js:7194:14)
remote:     at Parser.getTokenFromCode (/tmp/build_396711075a2ae75358d2c942f9c73c1c/node_modules/@babel/parser/lib/index.js:6966:14)
remote:     at Parser.nextToken (/tmp/build_396711075a2ae75358d2c942f9c73c1c/node_modules/@babel/parser/lib/index.js:6542:12)
remote:     at Parser.next (/tmp/build_396711075a2ae75358d2c942f9c73c1c/node_modules/@babel/parser/lib/index.js:6482:10)
remote:     at Parser.eat (/tmp/build_396711075a2ae75358d2c942f9c73c1c/node_modules/@babel/parser/lib/index.js:6487:12)
remote:     at Parser.expect (/tmp/build_396711075a2ae75358d2c942f9c73c1c/node_modules/@babel/parser/lib/index.js:7645:10)
remote:     at Parser.parseCallExpressionArguments (/tmp/build_396711075a2ae75358d2c942f9c73c1c/node_modules/@babel/parser/lib/index.js:8605:14)
remote:     at Parser.parseSubscript (/tmp/build_396711075a2ae75358d2c942f9c73c1c/node_modules/@babel/parser/lib/index.js:8515:29)
remote:     at Parser.parseSubscripts (/tmp/build_396711075a2ae75358d2c942f9c73c1c/node_modules/@babel/parser/lib/index.js:8434:19)
remote:   pos: 4390,
remote:   loc: Position { line: 166, column: 15 },
remote:   code: 'BABEL_PARSE_ERROR' }

我的babel配置如下所示：

{
  "presets": [
    [
    "@babel/preset-env", {
      "targets": {
        "node": "current"
      }
    }
  ]
],
  "plugins": [
    "@babel/plugin-proposal-object-rest-spread",
    ["@babel/plugin-transform-classes", {
      "loose": true
    }]
  ]
}

可能是什么问题？

Answer 1

0755被解释为一个八进制数字，它们在javascript中都以0开头（（编辑：用于开始）），因此会出现错误。因此0755从技术上来说是十进制数字493，并以此方式进行解释。

这里的真正问题是，没有数字前导零这样的东西。

快速解决方案是使用数字755（不带前导0）或使用字符串"0755"。不过，不知道这将如何影响其余的代码。如果需要八进制，也许babel有解析选项可以添加到配置中？

编辑：

显然，也禁止在严格模式下以这种语法使用八进制文字。

Number with leading zero in JavaScript

因此，如果您需要八进制数字，请尝试0o755。

未部署到Heroku的Node js应用抛出错误`严格模式下不允许使用八进制文字'

1 个答案: