cssmin给了我"Path必须是一个字符串.收到undefined"

Question

我的项目是一个非常基本的yo/angular项目.我有以下cssmin配置.

    useminPrepare: {
      html: '<%= yeoman.app %>/index.html',
      options: {
        dest: '<%= yeoman.dist %>',
        flow: {
          html: {
            steps: {
              js: ['concat', 'uglifyjs'],
              css: ['cssmin']
            },
            post: {}
          }
        }
      }
    },
...
    cssmin: {
      dist: {
        files: {
          '<%= yeoman.dist %>/styles/main.css': [
            '.tmp/styles/{,*/}*.css'
          ]
        }
      }
    },
...
  grunt.registerTask('build', [
    'clean:dist',
    'wiredep',
    'useminPrepare',
    'concurrent:dist',
    'autoprefixer',
    'concat',
    'ngAnnotate',
    'copy:dist',
    'cdnify',
    'cssmin',
    'uglify',
    'filerev',
    'usemin',
    'htmlmin'
  ]);

当我运行grunt构建时,我收到以下错误:

Running "cssmin:generated" (cssmin) task
Warning: Path must be a string. Received undefined Use --force to continue.

Aborted due to warnings.


Execution Time (2016-05-26 00:57:04 UTC)
concurrent:dist        15s  
autoprefixer:server   3.3s 
ngAnnotate:dist       3.6s  
cdnify:dist          10.7s  
cssmin:dist          888ms  
Total 34.6s

我在其他帖子上看到了这个错误,但没有看到cssmin.我已将package.json中的库升级到最新版本,这可能是原因.

这个项目一次很好.我无法确定缺少哪条路径.有谁知道我错过了什么路？

Answer 1

上述回复中提到的答案对我有用.

因此,在第41行的node_modules/grunt-contrib-cssmin/tasks/cssmin.js中,向参数添加一个空字符串或空字符串:

//before
options.relativeTo = path.dirname(availableFiles[0]);

//after
options.relativeTo = path.dirname(availableFiles[0] || '');

来自:https: //github.com/gruntjs/grunt-contrib-cssmin/pull/271/commits/11e655873dfa58b6edcda0113cee612f7a6b2ab9?diff =split

Answer 2

实际上问题已修复,请在此处更新v1.0.2 链接的版本

Answer 3

编辑:答案现已过时,请参阅下面的/sf/answers/2763755011/

更多信息运行详细选项:

youri$ grunt -v

Running "cssmin:generated" (cssmin) task
Verifying property cssmin.generated exists in config...OK
Files: [no src] -> dist/styles/vendor.css
Files: .tmp/styles/main.css -> dist/styles/main.css
Options: rebase=false, report="min", sourceMap=false
Warning: Path must be a string. Received undefined Use --force to continue.

看起来我们并不孤单.通过跟踪问题面包屑,我发现:

• generator-angular#1218
• clean-css#774
• 节点#5348

建议的解决方法是降级到节点v5,实际上,它适用于(对我而言).如果您觉得它更方便,也可以安装节点版本管理器.

Answer 4

你只需要:

在package.json中更改此内容

"grunt-contrib-cssmin": "^1.0.2",

然后

npm install