Unity解决VsCode某些项目可以代码提示，某些项目不能代码智能提示

在百度上找不到解决办法的一定要看我这个方法！！！！！！

前些天在电脑上装了写东西，今天打开我的Unity的c#脚本，发现莫名奇妙智能提示消失了，或者只能提示一部分。关键是只是一部分项目的智能提示消失了，其他的项目都还好好的，不知道抽了什么风。然后我百度几乎用了所有方法，结果发现没用，我就开始找不同，终于解决了，而且巨简单。

能智能提示的项目的是这样子的，

不能智能提示的项目是这样子的

然后我发现有智能提示的项目。左边的Packages文件夹目录下是有一个packages-lock.json，如下图

 而且在.sln文件里是多出来这样一段代码

Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Assembly-CSharp", "Assembly-CSharp.csproj", "{2a737568-0b73-8fc0-84b1-a953fef9afcf}"
EndProject

然后我就在那没有代码提示的项目里，手动将那个packages-lock.json文件完完整整的复制过去，

 

粘贴到没有这个文件的项目里

 

 并且在.sln文件里把那段代码复制过去

 然后关闭整个Unity项目再重新打开，我发现就可以智能提示啦！！！而且不仅如此，我把一个项目的这样子弄，其他所有的项目自动就跟着一起改动，所有的项目都有智能提示了。

 附上packages-lock.json源码，如果大家没有packages-lock.json.大家可以直接新建一个文件，命名为packages-lock.json，把底下的源码复制到里面，一样的效果，不需要任何修改,不要忘记在.sln文件里面把那一小段代码加上哦。

{
  "dependencies": {
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      "version": "3.2.9",
      "depth": 0,
      "source": "registry",
      "dependencies": {
        "com.unity.2d.common": "2.1.0",
        "com.unity.mathematics": "1.1.0",
        "com.unity.2d.sprite": "1.0.0",
        "com.unity.modules.animation": "1.0.0",
        "com.unity.modules.uielements": "1.0.0"
      },
      "url": "https://packages.unity.cn"
    },
    "com.unity.2d.common": {
      "version": "2.1.0",
      "depth": 1,
      "source": "registry",
      "dependencies": {
        "com.unity.2d.sprite": "1.0.0",
        "com.unity.modules.uielements": "1.0.0"
      },
      "url": "https://packages.unity.cn"
    },
    "com.unity.2d.path": {
      "version": "2.1.1",
      "depth": 1,
      "source": "registry",
      "dependencies": {},
      "url": "https://packages.unity.cn"
    },
    "com.unity.2d.pixel-perfect": {
      "version": "2.1.0",
      "depth": 0,
      "source": "registry",
      "dependencies": {},
      "url": "https://packages.unity.cn"
    },
    "com.unity.2d.psdimporter": {
      "version": "2.1.8",
      "depth": 0,
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        "com.unity.2d.animation": "3.2.9",
        "com.unity.2d.sprite": "1.0.0"
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      "url": "https://packages.unity.cn"
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    "com.unity.timeline": {
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}