vue preset.json vue创建消息

Question

我正在创建一个vue项目：

vue create --preset./ my-app

preset.json是

{
    "useTaobaoRegistry": true,
    "packageManager": "npm",
    "presets": {
      "preset1": {
        "useConfigFiles": true,
        "plugins": {
          "@vue/cli-plugin-babel": {},
          "@vue/cli-plugin-pwa": {},
          "@vue/cli-plugin-router": {
            "historyMode": true
          },
          "@vue/cli-plugin-vuex": {},
          "@vue/cli-plugin-eslint": {
            "config": "base",
            "lintOn": [
              "save"
            ]
          },
          "@vue/cli-plugin-unit-mocha": {},
          "@vue/cli-plugin-e2e-cypress": {}
        },
        "cssPreprocessor": "dart-sass"
      }
    }
  }

当我执行这个命令时，我得到以下错误

ERROR  TypeError: Cannot set property '@vue/cli-service' of undefined
TypeError: Cannot set property '@vue/cli-service' of undefined
    at Creator.create (/usr/local/lib/node_modules/@vue/cli/lib/Creator.js:97:40)
    at async create (/usr/local/lib/node_modules/@vue/cli/lib/create.js:72:3)

是预设json的错误吗？

Answer 1

尝试使用以下命令之一安装所有依赖项：

yarn install

或

npm install

看起来您没有安装项目的所有依赖项，因此找不到“@vue/cli-service”。