无法为下划线找到合适的版本

Question

我得到以下错误：

Message:
    Unable to find suitable version for underscore
Details:
    code: ECONFLICT
    picks: [object Object],[object Object],[object Object]

使用下面的bower文件，这个错误我以前从未遇到过。我不能使用交互式shell，因为它会被部署到持续集成中。我们也更喜欢使用Github回购链接(不要问我为什么)的保龄球包。

{
    "name": "Nightbird",
    "version": "0.0.1",
    "main": "src/css/style.scss",
    "dependencies": {
      "backbone": "git@github.com:jashkenas/backbone.git#1.1.2",
      "underscore": "git@github.com:jashkenas/underscore.git#1.6.0",
      "aisis-bootstrap-theme": "git@github.com:AdamKyle/Aisis-Bootstrap-Theme.git#0.5.0",
      "selectize.js": "git@github.com:brianreavis/selectize.js.git#0.8",
      "underscore.string": "git@github.com:epeli/underscore.string.git#v2.3.2",
      "jquery-bootpag": "git@github.com:botmonster/jquery-bootpag.git#1.0.5",
      "underscore.inflection": "git@github.com:jeremyruppel/underscore.inflection.git",
      "moment": "git@github.com:moment/moment.git",
      "bootstrap-markdown": "git@github.com:toopay/bootstrap-markdown.git#2.5.0",
      "markdown-js": "git@github.com:evilstreak/markdown-js.git#v0.5.0",
      "to-markdown": "git@github.com:domchristie/to-markdown.git#v0.0.2",
      "font-awesome": "git@github.com:FortAwesome/Font-Awesome.git#4.2.0",
      "react-bower": "git@github.com:reactjs/react-bower.git#0.11.1",
      "showdown": "git@github.com:coreyti/showdown.git#0.3.1",
      "pure": "git@github.com:yahoo/pure.git#0.5.0"
    }
}

知道怎么回事吗？这是个虫子吗？还是只是个开发人员傻了？

Answer 1

3种不同版本的下划线之间存在冲突。

这样做的原因是，下划线是您的3个依赖项所必需的:夜莺、主干和underscore.inflection。

使用Bower的最新版本，您可以看到以下信息：

Unable to find a suitable version for underscore, please choose one:
    1) underscore#1.6.0 which resolved to 1.6.0 and is required by Nightbird
    2) underscore#>=1.5.0 which resolved to 1.6.0 and is required by backbone#1.1.2
    3) underscore#~1.7.0 which resolved to 1.7.0 and is required by underscore.inflection#1.2.0

您可以通过在bower.json中添加以下内容来强制bower使用特定版本的解决方案。在本例中，它将强制使用1.6.0：

"resolutions": {
  "underscore": "1.6.0"
}