vue.runtime.esm.js?c320:4605 [Vue warn]: Error in v-on handler: "TypeError: _vm.login is not a function"

This error message indicates that the method "login" is not defined in the Vue instance or component where it is being called. You need to make sure that the "login" method is defined in the component's methods object or in the Vue instance's methods object. Also, make sure that the method name is spelled correctly and that it is being called correctly in the template or in the event handler.

相关问题

vue.runtime.esm.js?c320:4605 [Vue warn]: Error in v-on handler: "TypeError: Cannot read property 'post' of undefined"

回答: 引发错误的原因是在使用v-on事件处理程序时，尝试读取未定义的属性'post'。\[3\]这可能是因为在处理程序中使用了未定义的对象或属性。要解决这个问题，你可以检查代码中的相关部分，确保在使用属性之前对其进行了正确的定义和初始化。另外，你还可以使用条件语句或默认值来处理可能为空的属性，以避免出现错误。
#### 引用[.reference_title]
- *1* *3* [报错 | vue.runtime.esm....c320:4560 [Vue warn]: Error in render: “TypeError: Cannot read properties of](https://blog.csdn.net/muziqwyk/article/details/126191223)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^insertT0,239^v3^insert_chatgpt"}} ] [.reference_item]
- *2* [【报错】vue.runtime.esm.js?c320:4605 [Vue warn]: Duplicate keys detected: ‘40825‘. This may cause ...](https://blog.csdn.net/qq_40797578/article/details/128266387)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^insertT0,239^v3^insert_chatgpt"}} ] [.reference_item]
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vue.runtime.esm.js?c320:4605 [Vue warn]: Error in v-on handler: "TypeError: Cannot read properties of undefined (reading 'validate')"

引用中提到的报错信息是由于出现了重复的键值对，这可能导致更新错误。而引用中的报错信息是由于尝试读取一个undefined对象的属性而导致的错误。
根据这些信息，可以推断出引用中的修复建议可能与此问题相关。在修复建议中，建议在返回值后加上`|| {}`，以避免当state.goodsInfo初始值为空对象时，属性为undefined时出现警告。因此，可能在处理v-on事件处理程序时，也可以使用类似的方法来确保所访问的对象不是undefined，以避免出现类似的错误。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* *3* [报错 | vue.runtime.esm....c320:4560 [Vue warn]: Error in render: “TypeError: Cannot read properties of](https://blog.csdn.net/muziqwyk/article/details/126191223)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
- *2* [【报错】vue.runtime.esm.js?c320:4605 [Vue warn]: Duplicate keys detected: ‘40825‘. This may cause ...](https://blog.csdn.net/qq_40797578/article/details/128266387)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
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