vue3-typescript-cesium-elementPlus 文档中怎么导入插件

从gitee 下载下来是两个文件分别以 1.21 和vue3 开头
我把1.21这个文件放在fastadmin的网站根目录下，然后把vue3这个插件导入不能解压
之后，直接从外部解压再粘贴在addons文件下， 然后再后台插件管理中可以看到这个这
个插件，但是打开报错
app.00734848.js:1 Failed to load resource: the server responded with a status of 404 (Not Found)
chunk-vendors.4fcf3a21.css:1 Failed to load resource: the server responded with a status of 404 (Not Found)
chunk-vendors.8bf4e273.js:1 Failed to load resource: the server responded with a status of 404 (Not Found)
app.9ea0afed.css:1 Failed to load resource: the server responded with a status of 404 (Not Found)
app.00734848.js:1 Failed to load resource: the server responded with a status of 404 (Not Found)
chunk-vendors.4fcf3a21.css:1 Failed to load resource: the server responded with a status of 404 (Not Found)
chunk-vendors.8bf4e273.js:1 Failed to load resource: the server responded with a status of 404 (Not Found)
app.9ea0afed.css:1 Failed to load resource: the server responded with a status of 404 (Not Found)
app.00734848.js:1 Failed to load resource: the server responded with a status of 404 (Not Found)
DevTools 无法加载来源映射：无法加载 https://mapv-data.oss-cn-hangzhou.aliyuncs.com/Cesium-1.82-hawk/Cesium.js.map 的内容：HTTP 错误：状态代码 404，net::ERR_HTTP_RESPONSE_CODE_FAILURE

之前试过以1.21这个为插件导入也不行

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