报错信息：
vue.runtime.esm.js?2b0e:619 [Vue warn]: You are using the runtime-only build of Vue where the template compiler is not available. Either pre-compile the templates into render functions, or use the compiler-included build.
解决办法：
新建vue.config.js
// vue.config.js
module.exports = {
runtimeCompiler: true,
}
重启server并重新刷新页面
相关解释：
https://cli.vuejs.org/zh/config/#runtimecompiler