解决vue访问警告：Feature flag __VUE_PROD_HYDRATION_MISMATCH_DETAILS__ is not explicitly

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main.ts:7 Feature flag__VUE_PROD_HYDRATION_MISMATCH_DETAILS__ is not explicitly defined. You arerunning the esm-bundler build of Vue, which expects these compile-time featureflags to be globally injected via the bundler config in order to get bettertree-shaking in the production bundle.

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解决办法：

需要在vue.config.js文件中添加配置：

const { defineConfig } =require('@vue/cli-service')

module.exports = defineConfig({

transpileDependencies: true

})

module.exports = {

chainWebpack: (config) => {

   config.plugin('define').tap((definitions) => {

     Object.assign(definitions[0], {

       __VUE_OPTIONS_API__: 'true',

       __VUE_PROD_DEVTOOLS__: 'false',

       __VUE_PROD_HYDRATION_MISMATCH_DETAILS__: 'false'

      })

     return definitions

   })

  }

}

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