Uncaught (in promise) 很抱歉!系统开小差了 Promise.then (async) 8aa57 @ index.4be8e825.js:1 r @ index.4be8e825.js:1 a368 @ index.4be8e825.js:1 r @ index.4be8e825.js:1 22e4 @ index.4be8e825.js:1 r @ index.4be8e825.js:1 b766 @ index.4be8e825.js:1 r @ index.4be8e825.js:1 35c4 @ index.4be8e825.js:1 r @ index.4be8e825.js:1 2a44 @ index.4be8e825.js:1 r @ index.4be8e825.js:1 0 @ index.4be8e825.js:1 r @ index.4be8e825.js:1 t @ index.4be8e825.js:1 (anonymous) @ index.4be8e825.js:1 (anonymous) @ index.4be8e825.js:1这个是什么错误
时间: 2024-04-23 07:22:30 浏览: 138
这个错误信息看起来是 JavaScript 中的一个未捕获异常,可能是由于代码中的 Promise 没有正确处理错误而导致的。具体的错误原因需要结合代码和上下文才能确定。你可以尝试在代码中使用 try-catch 块来捕获异常,或者使用 Promise 的 catch() 方法来捕获异常并处理错误。另外,你也可以提供更多的上下文信息,以便我更好地帮助你解决问题。
相关问题
VM8007:1 Uncaught SyntaxError: "undefined" is not valid JSON at JSON.parse (<anonymous>) at eval (settingOperate.vue:426:1) eval @ settingOperate.vue:426 setTimeout(异步) _callee5$ @ settingOperate.vue:425 tryCatch @ regeneratorRuntime.js:44 eval @ regeneratorRuntime.js:125 eval @ regeneratorRuntime.js:69 asyncGeneratorStep @ asyncToGenerator.js:3 _next @ asyncToGenerator.js:22 Promise.then(异步) asyncGeneratorStep @ asyncToGenerator.js:12 _next @ asyncToGenerator.js:22 eval @ asyncToGenerator.js:27 eval @ asyncToGenerator.js:19 performinfuns @ settingOperate.vue:427 _callee4$ @ settingOperate.vue:389 tryCatch @ regeneratorRuntime.js:44 eval @ regeneratorRuntime.js:125 eval @ regeneratorRuntime.js:69 asyncGeneratorStep @ asyncToGenerator.js:3 _next @ asyncToGenerator.js:22 eval @ asyncToGenerator.js:27 eval @ asyncToGenerator.js:19 changecmd @ settingOperate.vue:390 _callee3$ @ settingOperate.vue:379 tryCatch @ regeneratorRuntime.js:44 eval @ regeneratorRuntime.js:125 eval @ regeneratorRuntime.js:69 asyncGeneratorStep @ asyncToGenerator.js:3 _next @ asyncToGenerator.js:22 Promise.then(异步) asyncGeneratorStep @ asyncToGenerator.js:12 _next @ asyncToGenerator.js:22 eval @ asyncToGenerator.js:27 eval @ asyncToGenerator.js:19 performinfun @ settingOperate.vue:379 _callee$ @ settingOperate.vue:296 tryCatch @ regeneratorRuntime.js:44 eval @ regeneratorRuntime.js:125 eval @ regeneratorRuntime.js:69 asyncGeneratorStep @ asyncToGenerator.js:3 _next @ asyncToGenerator.js:22 Promise.then(异步) asyncGeneratorStep @ asyncToGenerator.js:12 _next @ asyncToGenerator.js:22 eval @ asyncToGenerator.js:27 eval @ asyncToGenerator.js:19 setForm @ settingOperate.vue:322 updateOperate @ add.vue:549 click @ add.vue:686 invokeWithErrorHandling @ vue.runtime.esm.js:1854 invoker @ vue.runtime.esm.js:2179 invokeWithErrorHandling @ vue.runtime.esm.js:1854 Vue.$emit @ vue.runtime.esm.js:3888 handleClick @ element-ui.common.js:9417 invokeWithErrorHandling @ vue.runtime.esm.js:1854 invoker @ vue.runtime.esm.js:2179 original._wrapper @ vue.runtime.esm.js:6917
这个错误的意思是,JSON.parse() 函数中传入的参数是 undefined,而 undefined 不是有效的 JSON。这可能是因为你在使用 JSON.parse() 之前没有检查传入的参数是否存在。可以添加一个检查来解决这个问题,例如:
```
if (typeof myData !== 'undefined') {
var parsedData = JSON.parse(myData);
}
```
这个代码片段首先检查 myData 是否已定义,然后再尝试解析 JSON。如果 myData 未定义,则不会调用 JSON.parse(),因此不会出现 "undefined" is not valid JSON 的错误。
index.vue:201 Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'type') at _callee$ (index.vue:201:1) at tryCatch (regeneratorRuntime.js:44:1) at Generator.eval (regeneratorRuntime.js:125:1) at Generator.eval [as next] (regeneratorRuntime.js:69:1) at asyncGeneratorStep (asyncToGenerator.js:3:1) at _next (asyncToGenerator.js:22:1) at eval (asyncToGenerator.js:27:1) at new Promise (<anonymous>) at eval (asyncToGenerator.js:19:1) at VueComponent.handleNodeClick (index.vue:227:1) _callee$ @ index.vue:201 tryCatch @ regeneratorRuntime.js:44 eval @ regeneratorRuntime.js:125 eval @ regeneratorRuntime.js:69 asyncGeneratorStep @ asyncToGenerator.js:3 _next @ asyncToGenerator.js:22 eval @ asyncToGenerator.js:27 eval @ asyncToGenerator.js:19 handleNodeClick @ index.vue:227 handleCurrentChange @ index.vue:197 invokeWithErrorHandling @ vue.runtime.esm.js:3971 invoker @ vue.runtime.esm.js:1188 invokeWithErrorHandling @ vue.runtime.esm.js:3971 Vue.$emit @ vue.runtime.esm.js:2874 eval @ element-ui.common.js:1116 eval @ vue.runtime.esm.js:4097 flushCallbacks @ vue.runtime.esm.js:4019 Promise.then(异步) timerFunc @ vue.runtime.esm.js:4044 nextTick @ vue.runtime.esm.js:4109 queueWatcher @ vue.runtime.esm.js:3346 Watcher.update @ vue.runtime.esm.js:3584 Dep.notify @ vue.runtime.esm.js:710 reactiveSetter @ vue.runtime.esm.js:4380 proxySetter @ vue.runtime.esm.js:5158 handleCurrentChange @ element-ui.common.js:1069 invokeWithErrorHandling @ vue.runtime.esm.js:3971 invoker @ vue.runtime.esm.js:1188 invokeWithErrorHandling @ vue.runtime.esm.js:3971 Vue.$emit @ vue.runtime.esm.js:2874 onPagerClick @ element-ui.common.js:547 invokeWithErrorHandling @ vue.runtime.esm.js:3971 invoker @ vue.runtime.esm.js:1188 original_1._wrapper @ vue.runtime.esm.js:7265
这个错误信息是在浏览器控制台中看到的,它表示在执行代码时发生了一个错误。具体来说,它指出在 index.vue 文件的第 201 行出现了一个 TypeError 错误,该错误的原因是尝试读取一个未定义的属性 'type'。这可能是因为在代码中没有正确定义变量或对象,或者代码中使用了一个不存在的变量或对象。需要检查代码中的变量定义和使用是否正确,以解决此错误。
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