编译时没有错误的简单程序会产生白页

Question

我编译了" Hello world "程序

import Html exposing (text)

main =
  text "Hello, World!"

在Windows上使用elm 0.17,没有编译错误:

elm make hello.elm --output index.html

当我在index.html上打开Chrome时,我会看到一个空白页面.Chrome的控制台在index.html中显示2个错误:

Uncaught ReferenceError: _elm_lang$virtual_dom$VirtualDom$text is not defined
Uncaught ReferenceError: Elm is not defined

如果我在该文件上运行elm-reactor,我也会得到一个白页,并在控制台中出现类似的错误.

不知何故,路径丢失了...这是elm-package.json文件:

{
"version": "1.0.0",
"summary": "helpful summary of your project, less than 80 characters",
"repository": "https://github.com/user/project.git",
"license": "BSD3",
"source-directories": [
    "."
],
"exposed-modules": [],
"dependencies": {
    "elm-lang/core": "4.0.0 <= v < 5.0.0",
    "elm-lang/html": "1.0.0 <= v < 2.0.0"
},
"elm-version": "0.17.0 <= v < 0.18.0"
}

我该怎么办 ？

Answer 1

我通过删除elm-stuff子目录来修复它.在下一个make,它重新安装丢失的包,一切正常.