# SDK Initialization failed

**URL:** <https://devforum.zoom.us/t/sdk-initialization-failed/65569>\
**Category:** Android\
**Created:** [March 10, 2022, 8:47am UTC](https://devforum.zoom.us/t/sdk-initialization-failed/65569 "2022-03-10T08:47:38Z")\
**Posts on this page:** 7\
**Page:** 1

<div class="post-metadata">

**Author:** ![jovy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/jovy/32/55248_2.png) [@jovy](https://devforum.zoom.us/u/jovy)\
**Post date:** [March 10, 2022, 8:47am UTC](https://devforum.zoom.us/t/sdk-initialization-failed/65569/1 "2022-03-10T08:47:38Z")

</div>

Hi there!,

I have downloaded sample app code for Android Platform from zoom, after this I’m adding JWT of user and trying to run sample app but when i run app i get error

 ![WhatsApp Image 2022-03-10 at 2.16.40 PM](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/b/4/b482a34b64d4b1b9cd65a42b30f847e0a1b8d6cd.jpeg)

below are logs from app

```auto
2022-03-10 14:13:39.926 15994-15994/us.zoom.sdkexample I/MultiDex: VM has multidex support, MultiDex support library is disabled.
2022-03-10 14:13:39.934 15994-15994/us.zoom.sdkexample E/Config:Grabber:OnePlusFontConfig: Index 0 requested, with a size of 0
2022-03-10 14:13:39.944 15994-15994/us.zoom.sdkexample E/zoom.sdkexampl: [frame_perf] perfboost open tb_ctl file failed, isApp[1], errno=No such file or directory
2022-03-10 14:13:39.944 15994-15994/us.zoom.sdkexample E/libprocessgroup: set_timerslack_ns write failed: Operation not permitted
2022-03-10 14:13:40.010 15994-15994/us.zoom.sdkexample I/ZoomSDK: initialize context is us.zoom.sdksample.ui.InitAuthSDKActivity@5fa4
2022-03-10 14:13:40.040 15994-15994/us.zoom.sdkexample I/ZmUtils: isValidSignature, 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
2022-03-10 14:13:40.074 15994-15994/us.zoom.sdkexample D/BluetoothAdapter: java.lang.Throwable
        at android.bluetooth.BluetoothAdapter.<init>(BluetoothAdapter.java:762)
        at android.bluetooth.BluetoothAdapter.getDefaultAdapter(BluetoothAdapter.java:735)
        at us.zoom.androidlib.util.HeadsetUtil.<init>(:88)
        at us.zoom.androidlib.util.HeadsetUtil.getInstance(:82)
        at com.zipow.videobox.VideoBoxApplication.onSDKCreated(:17)
        at com.zipow.videobox.VideoBoxApplication.initializeForSDK(:6)
        at us.zoom.sdk.ZoomSDK.initialize(:50)
        at us.zoom.sdksample.initsdk.InitAuthSDKHelper.initSDK(:48)
        at us.zoom.sdksample.ui.InitAuthSDKActivity.onCreate(:81)
        at android.app.Activity.performCreate(Activity.java:8006)
        at android.app.Activity.performCreate(Activity.java:7990)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1329)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3584)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3775)
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85)
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2246)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loop(Looper.java:233)
        at android.app.ActivityThread.main(ActivityThread.java:8010)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:631)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:978)

```

I have downloaded latest version \<5.9.6.4777\>  
please help on this

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<div class="post-metadata">

**Author:** ![jon.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/jon.zoom/32/13495_2.png) [@jon.zoom](https://devforum.zoom.us/u/jon.zoom)\
**Post date:** [March 10, 2022, 8:35pm UTC](https://devforum.zoom.us/t/sdk-initialization-failed/65569/2 "2022-03-10T20:35:03Z")

</div>

Hi @jovy,

Can you please elaborate on how you are creating the JWT you’re using with the SDK?

Thanks!

---

<div class="post-metadata">

**Author:** ![jovy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/jovy/32/55248_2.png) [@jovy](https://devforum.zoom.us/u/jovy)\
**Post date:** [March 11, 2022, 11:10am UTC](https://devforum.zoom.us/t/sdk-initialization-failed/65569/3 "2022-03-11T11:10:10Z")

</div>

hi @jon.zoom

we have deployed zoom APIs to our server, once user connected zoom account we get JWT, that we are passing here

```auto
import requests

url = "https://zoom.us/oauth/token"

payload='grant_type=authorization_code&code=Xyac0echb6_OcVP5NTIQ3OGmdNk3ZSZ6w&redirect_uri=https%3A%2F%2Fglass.mirobotic.tech%2Fauthentication%2Fzoom'
headers = {
  'Authorization': 'Basic key',
  'Content-Type': 'application/x-www-form-urlencoded'
}

response = requests.request("POST", url, headers=headers, data=payload)

print(response.text)

```

using above API, we get access token, refresh token etc. this token i’m using in sample app

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<div class="post-metadata">

**Author:** ![jon.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/jon.zoom/32/13495_2.png) [@jon.zoom](https://devforum.zoom.us/u/jon.zoom)\
**Post date:** [March 11, 2022, 9:14pm UTC](https://devforum.zoom.us/t/sdk-initialization-failed/65569/4 "2022-03-11T21:14:30Z")

</div>

Hi @jovy,

The JWT you use to initialize the SDK is not available through our APIs. You need to generate it using your SDK key/secret based on the payload outline in our [documentation](https://marketplace.zoom.us/docs/sdk/native-sdks/auth#generating-jwt). It looks like the endpoint you are using is the one meant for obtaining an access token through OAuth. OAuth is meant for end user authentication (i.e. if you want a Zoom user to log into Zoom to host a meeting).

Thanks!

---

<div class="post-metadata">

**Author:** ![jovy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/jovy/32/55248_2.png) [@jovy](https://devforum.zoom.us/u/jovy)\
**Post date:** [March 12, 2022, 3:10am UTC](https://devforum.zoom.us/t/sdk-initialization-failed/65569/5 "2022-03-12T03:10:31Z")

</div>

Thanks @jon.zoom.  
I will create and JWT using SDK key and secret.

---

<div class="post-metadata">

**Author:** ![jon.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/jon.zoom/32/13495_2.png) [@jon.zoom](https://devforum.zoom.us/u/jon.zoom)\
**Post date:** [March 14, 2022, 9:39pm UTC](https://devforum.zoom.us/t/sdk-initialization-failed/65569/6 "2022-03-14T21:39:27Z")

</div>

Sounds good! And if you run into any other issues, please don’t hesitate to reach back out with a new topic. 🙂

---

<div class="post-metadata">

**Author:** ![jon.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/jon.zoom/32/13495_2.png) [@jon.zoom](https://devforum.zoom.us/u/jon.zoom)\
**Post date:** [March 14, 2022, 9:39pm UTC](https://devforum.zoom.us/t/sdk-initialization-failed/65569/7 "2022-03-14T21:39:29Z")

</div>