答案:Jest测试执行时出现UnhandledPromiseRejectionWarning警告,通常是因为某个Promise对象被拒绝(rejected)但没有适当地处理该拒绝(rejection)。当Promise对象没有被处理时,JavaScript会发出这个警告,以提醒开发者可能存在未处理的异常情况。 解决该警告的方法有以下几种: 使用async/await:将测试函数或相关...
答案:在使用Jest进行测试时,如果在测试代码中使用了Promise.all,并且其中的某个Promise被reject了,Jest会显示UnhandledPromiseRejectionWarning警告信息。这是因为Promise.all会等待所有的Promise都执行完成,如果其中有一个Promise被reject了,而没有被.catch或者.then处理,就会导致未处理的Promise rejection。 为了解决这个问题...
There's an open issue about this in jest repository. facebook/jest#5311 canyener mentioned this issue Oct 10, 2019 Fix unhandled promise rejection warning #41 Merged canyener closed this in #41 Oct 10, 2019 Sign up for free to join this conversation on GitHub. Already have an account...
Jest: stuck on [UnhandledPromiseRejection: This error originated, [UnhandledPromiseRejection: This error originated either by throwing inside of an async function without a catch block, or by rejecting a Uncaught error occurs when scheduling/starting ...
(node:8003) UnhandledPromiseRejectionWarning: TypeError: Cannot read property 'data' of undefined at ProjectHasher.<anonymous> (/Users/crash/git/iko-travel-spa/node_modules/@nrwl/workspace/src/core/hasher/hasher.js:248:41) at Generator.next (<anonymous>) at /Users/crash/git/iko-travel-spa/no...
(node:1841) UnhandledPromiseRejectionWarning: Error: Cannot find module 'View' at Function.Module._resolveFilename (internal/modules/cjs/loader.js:581:15) at Function.Module._load (internal/modules/cjs/loader.js:507:25) at Module.require (internal/modules/cjs/loader.js:637:17) at ...
运行ios,报异常:UnhandledPromiseRejectionWarning,Duplicate module name: react-native具体异常信息如下: UnhandledPromiseRejectionWarning: Error: jest-haste-map: @providesModule naming collision: Duplicate module name: react-native Paths: /Users/fenglonghui/project_fram/front-advanced/Github_RN/ios/build/...
'9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08'
node报错:UnhandledPromiseRejectionWarning: RangeError [ERR_HTTP_INVALID_STATUS_CODE]: Invalid status code: [object Object] 2020-07-15 13:09 −... 飘逸_winxin 0 1318 Invalid Native Object 2019-12-19 19:12 −发现是因为没有addChild到父节点上引起的... ...
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