vue工程使用webpack，增加了cesium依賴，啟動時會輸出下面的警告信息：
WARNING Compiled with 3 warnings 4:26:41 PM
warning in ./node_modules/cesium/Source/Core/buildModuleUrl.js
114:14-21 Critical dependency: require function is used in a way in which dependencies cannot be statically extracted
warning in ./node_modules/cesium/Source/Core/buildModuleUrl.js
52:12-19 Critical dependency: require function is used in a way in which dependencies cannot be statically extracted
warning in ./node_modules/cesium/Source/Core/buildModuleUrl.js
80:25-32 Critical dependency: require function is used in a way in which dependencies cannot be statically extracted
解決辦法是修改webpack.base.conf.js，如果是vue-cli工程則是修改vue.config.js，增加如下的內容：
{
module: {
unknownContextRegExp = /^('|')\.\/.*?\1$/
unknownContextCritical = false
},
amd: {
toUrlUndefined: true
}
}