# Errors when starting zoom/websdk project **URL:** \ **Category:** Web\ **Created:** [April 18, 2021, 3:29pm UTC](https://devforum.zoom.us/t/errors-when-starting-zoom-websdk-project/48236 "2021-04-18T15:29:47Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![sehlisehli60](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/sehlisehli60/32/26013_2.png) [@sehlisehli60](https://devforum.zoom.us/u/sehlisehli60)\ **Post date:** [April 18, 2021, 3:29pm UTC](https://devforum.zoom.us/t/errors-when-starting-zoom-websdk-project/48236/1 "2021-04-18T15:29:48Z")
Hello i’m trying to implement zoom sdk in my angular application so as a first step i cloned the project provided by zoom on github : websdk-sample-angular and i followed all instructions but when i start it it shows many errors in the console and i don’t have any idea how to fix them . Devices : Angular CLI 10.2.3 Zoom sdk version : 1.9.1 Please help ! errors : zone-evergreen.js:2845 GET [https://rwcprod.zoom.us/wc/ping/4392883085?ts=1618758628084&auth=LKXTPicpvImz\_xHoFAo4sCklPNRRYYl0jdriBIgqXsg&rwcToken=8Ej4faYFj\_lmfp-hzNPO-rzlXBCsUi-h6GBQ5HSW5To&dmz=1](https://rwcprod.zoom.us/wc/ping/4392883085?ts=1618758628084&auth=LKXTPicpvImz_xHoFAo4sCklPNRRYYl0jdriBIgqXsg&rwcToken=8Ej4faYFj_lmfp-hzNPO-rzlXBCsUi-h6GBQ5HSW5To&dmz=1) net::ERR\_CERT\_COMMON\_NAME\_INVALID scheduleTask @ zone-evergreen.js:2845 scheduleTask @ zone-evergreen.js:385 scheduleTask @ zone-evergreen.js:210 scheduleMacroTask @ zone-evergreen.js:233 scheduleMacroTaskWithCurrentZone @ zone-evergreen.js:1134 (anonymous) @ zone-evergreen.js:2878 proto. @ zone-evergreen.js:1449 (anonymous) @ zoomus-websdk.umd.min.js:2 ZoneAwarePromise @ zone-evergreen.js:960 e.exports @ zoomus-websdk.umd.min.js:2 e.exports @ zoomus-websdk.umd.min.js:2 invoke @ zone-evergreen.js:364 run @ zone-evergreen.js:123 (anonymous) @ zone-evergreen.js:857 invokeTask @ zone-evergreen.js:399 runTask @ zone-evergreen.js:167 drainMicroTaskQueue @ zone-evergreen.js:569 Promise.then (async) scheduleMicroTask @ zone-evergreen.js:552 scheduleTask @ zone-evergreen.js:388 scheduleTask @ zone-evergreen.js:210 scheduleMicroTask @ zone-evergreen.js:230 scheduleResolveOrReject @ zone-evergreen.js:847 resolvePromise @ zone-evergreen.js:785 (anonymous) @ zone-evergreen.js:705 window. @ zoomus-websdk.umd.min.js:2 (anonymous) @ info?meetingNumber=4392883085&userName=Angular&passWord=zLTE2D&signature=MEhFUzk4b0FURVN2RWpral9UYU1zdy40MzkyODgzMDg1LjE2MTg3NTg1OTIzNjAuMS45YVhRZXJCSStKb01aWE5YNTdxNVZ1NnN6elVIbDB1ZFUxZk90cnE4R0VVPQ%3D%3D&apiKey=0HES98oATESvEjkj\_TaMsw&lang=en-US&userEmail=sehlisehli60%[40hotmail.com](http://40hotmail.com)&cv=1.9.1&proxy=1&sdkOrigin=aHR0cDovL2xvY2FsaG9zdDo0MjAw&tk=&ztk=&sdkUrl=aHR0cDovL2xvY2FsaG9zdDo0MjAwLw&captcha=&captchaName=&suid=&\_=1618758627801&callback=axiosJsonpCallback2:1 checkPropTypes.js:20 Warning: Failed prop type: The prop `id` is required to make `n` accessible for users of assistive technologies such as screen readers. in n (created by Uncontrolled(n)) in Uncontrolled(n) in Unknown (created by A) in A in div in div in div in Unknown (created by A) in A (created by s) in div (created by s) in div (created by s) in s (created by A) in A (created by b) in div (created by b) in b (created by A) in A (created by a) in div (created by a) in a (created by A) in A (created by p) in div (created by p) in n (created by p) in p printWarning @ checkPropTypes.js:20 checkPropTypes @ checkPropTypes.js:82 validatePropTypes @ react.development.js:1666 createElementWithValidation @ react.development.js:1755 t.render @ zoomus-websdk.umd.min.js:2 finishClassComponent @ react-dom.development.js:14741 updateClassComponent @ react-dom.development.js:14696 beginWork @ react-dom.development.js:15644 performUnitOfWork @ react-dom.development.js:19312 workLoop @ react-dom.development.js:19352 renderRoot @ react-dom.development.js:19435 performWorkOnRoot @ react-dom.development.js:20342 performWork @ react-dom.development.js:20254 performSyncWork @ react-dom.development.js:20228 batchedUpdates$1 @ react-dom.development.js:20443 notify @ zoomus-websdk.umd.min.js:2 n.notifyNestedSubs @ zoomus-websdk.umd.min.js:2 t.notifySubscribers @ zoomus-websdk.umd.min.js:2 n.handleChangeWrapper @ zoomus-websdk.umd.min.js:2 dispatch @ createStore.js:173 (anonymous) @ index.js:14 dispatch @ applyMiddleware.js:35 Ee @ zoomus-websdk.umd.min.js:2 (anonymous) @ zoomus-websdk.umd.min.js:2 (anonymous) @ index.js:11 (anonymous) @ zoomus-websdk.umd.min.js:2 handleOnMessage @ zoomus-websdk.umd.min.js:2 i..i..onmessage @ zoomus-websdk.umd.min.js:2 wrapFn @ zone-evergreen.js:1218 invokeTask @ zone-evergreen.js:399 runTask @ zone-evergreen.js:167 invokeTask @ zone-evergreen.js:480 invokeTask @ zone-evergreen.js:1621 globalZoneAwareCallback @ zone-evergreen.js:1647 Show 4 more frames react-dom.development.js:506 ![qst](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/4/3/4342eaaeec0c29df3af69eca10b8bf0b85582f68.jpeg) ---
**Author:** ![will.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/will.zoom/32/14417_2.png) [@will.zoom](https://devforum.zoom.us/u/will.zoom)\ **Post date:** [April 19, 2021, 7:10pm UTC](https://devforum.zoom.us/t/errors-when-starting-zoom-websdk-project/48236/2 "2021-04-19T19:10:38Z")
Hi @sehlisehli60, Have you made sure that you’re preloading all of your resources appropriately before initializing any meetings? Note that some of these errors are just warnings and may not affect your implementation directly. You can also test with our other sample app to see if an issue is related to your implementation or the functionality of the [Web SDK](https://marketplace.zoom.us/docs/sdk/native-sdks/web#zoom-web-sdk). Thanks, Will ---
**Author:** ![sehlisehli60](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/sehlisehli60/32/26013_2.png) [@sehlisehli60](https://devforum.zoom.us/u/sehlisehli60)\ **Post date:** [April 19, 2021, 7:15pm UTC](https://devforum.zoom.us/t/errors-when-starting-zoom-websdk-project/48236/3 "2021-04-19T19:15:43Z")
Greetings , I’ll work on it I thank you so much for your help sir ! ---
**Author:** ![will.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/will.zoom/32/14417_2.png) [@will.zoom](https://devforum.zoom.us/u/will.zoom)\ **Post date:** [April 20, 2021, 7:21pm UTC](https://devforum.zoom.us/t/errors-when-starting-zoom-websdk-project/48236/4 "2021-04-20T19:21:40Z")
No problem, glad I could help! ---
**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/6/1/614bdd549b610bbaa46ff934617683a02bdaa03c.png) [@system](https://devforum.zoom.us/u/system)\ **Post date:** [May 21, 2021, 5:22am UTC](https://devforum.zoom.us/t/errors-when-starting-zoom-websdk-project/48236/5 "2021-05-21T05:22:35Z")
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