vue2/3 - 报错Feature flag __VUE_PROD_HYDRATION_MISMATCH_DETAILS__ is not explicitly defined. You are r

问题说明

在vue2、vue3项目开发中，启动运行项目时报错：Feature flag VUE_PROD_HYDRATION_MISMATCH_DETAILS is not explicitly defined. You are running the esm-bundler build of Vue, which expects these compile-time feature flags to be globally injected via the bundler config in order to get better tree-shaking in the production bundle.（vue浏览器控制台黄色警告报错，详细解决方案）

如果我们的报错差不多，就可以完美搞定。

解决教程

首先，要明确