in ./node_modules/@vueuse/core/index.mjs Can't reexport the namespace object from non EcmaScript module (only default export is available)

对于你提供的问题，我无法直接回答，因为它是一个代码错误信息，而不是一个问题。这个错误信息表明在文件"./node_modules/@vueuse/core/index.mjs"中，无法从非ECMAScript模块重新导出命名空间对象，只能使用默认导出。这可能是由于模块的导出方式不符合ECMAScript的规范导致的。

要解决这个问题，你可以检查"./node_modules/@vueuse/core/index.mjs"文件中的导出方式是否正确。确保只使用默认导出而不是命名空间导出。你还可以查看你的代码中是否有其他地方导入了这个模块，并确保正确使用了导入的内容。

如果你需要更具体的帮助，请提供更多的上下文和代码细节，以便我能够更好地帮助你解决这个问题。

相关问题

WARN "css.modules" option in vue.config.js is deprecated now, please use "css.requireModuleExtension" instead. INFO Starting development server... 98% after emitting CopyPlugin WARNING Compiled with 17 warnings 09:43:57 warning in ./node_modules/vue-router/dist/vue-router.mjs "export 'computed' was not found in 'vue' warning in ./src/router/index.js "export 'default' (imported as 'VueRouter') was not found in 'vue-router' warning in ./node_modules/vue-router/dist/vue-router.mjs "export 'defineComponent' was not found in 'vue' warning in ./node_modules/vue-router/dist/vue-router.mjs "export 'getCurrentInstance' was not found in 'vue' warning in ./node_modules/vue-router/dist/vue-router.mjs "export 'h' was not found in 'vue' warning in ./node_modules/vue-router/dist/vue-router.mjs "export 'inject' was not found in 'vue' warning in ./node_modules/vue-router/dist/vue-router.mjs "export 'nextTick' was not found in 'vue' warning in ./node_modules/vue-router/dist/vue-router.mjs "export 'onActivated' was not found in 'vue' warning in ./node_modules/vue-router/dist/vue-router.mjs "export 'onDeactivated' was not found in 'vue' warning in ./node_modules/vue-router/dist/vue-router.mjs "export 'onUnmounted' was not found in 'vue' warning in ./node_modules/vue-router/dist/vue-router.mjs "export 'provide' was not found in 'vue' warning in ./node_modules/vue-router/dist/vue-router.mjs "export 'reactive' was not found in 'vue' warning in ./node_modules/vue-router/dist/vue-router.mjs "export 'ref' was not found in 'vue' warning in ./node_modules/vue-router/dist/vue-router.mjs "export 'shallowRef' was not found in 'vue' warning in ./node_modules/vue-router/dist/vue-router.mjs "export 'unref' was not found in 'vue' warning in ./node_modules/vue-router/dist/vue-router.mjs "export 'watch' was not found in 'vue' warning in ./node_modules/vue-router/dist/vue-router.mjs "export 'watchEffect' was not found in 'vue'这个报错因为什么

这个报错是因为在使用Vue Router时，导入的Vue Router版本与当前项目中的Vue版本不匹配导致的。具体来说，Vue Router中使用了Vue 3的语法而当前项目中使用的是Vue 2，所以会出现一些语法上的错误。解决方法是将Vue Router更新到与当前项目中使用的Vue版本相匹配的版本。

_ctx.open is not a function TypeError: _ctx.open is not a function at onClick._cache.<computed>._cache.<computed> (webpack-internal:///./node_modules/babel-loader/lib/index.js??clonedRuleSet-40.use[0]!./node_modules/vue-loader/dist/templateLoader.js??ruleSet[1].rules[3]!./node_modules/vue-loader/dist/index.js??ruleSet[0].use[0]!./src/components/main/index.vue?vue&type=template&id=4774750c&scoped=true:60:67) at callWithErrorHandling (webpack-internal:///./node_modules/@vue/runtime-core/dist/runtime-core.esm-bundler.js:285:18) at callWithAsyncErrorHandling (webpack-internal:///./node_modules/@vue/runtime-core/dist/runtime-core.esm-bundler.js:293:17) at emit (webpack-internal:///./node_modules/@vue/runtime-core/dist/runtime-core.esm-bundler.js:749:5) at eval (webpack-internal:///./node_modules/@vue/runtime-core/dist/runtime-core.esm-bundler.js:6565:45) at Proxy.handleClick (webpack-internal:///./node_modules/element-plus/es/components/menu/src/menu-item2.mjs:56:9) at onClick._cache.<computed>._cache.<computed> (webpack-internal:///./node_modules/element-plus/es/components/menu/src/menu-item2.mjs:83:78) at callWithErrorHandling (webpack-internal:///./node_modules/@vue/runtime-core/dist/runtime-core.esm-bundler.js:285:18) at callWithAsyncErrorHandling (webpack-internal:///./node_modules/@vue/runtime-core/dist/runtime-core.esm-bundler.js:293:17) at HTMLLIElement.invoker (webpack-internal:///./node_modules/@vue/runtime-dom/dist/runtime-dom.esm-bundler.js:425:82)

这个错误提示是在你执行某个点击事件时发生的，具体可以看到错误提示中的代码行数是60。问题可能是在该函数中调用了一个不是函数的对象的open方法。你需要检查一下该函数中的代码，找到相应的对象，确认对象是否正确创建，并且确保该对象确实有open方法。如果对象中没有open方法，则需要检查你的代码逻辑是否正确，或者找到正确的方法来打开对象。