# ZIF errors

**URL:** <https://forum.magicleap.cloud/t/zif-errors/718>\
**Category:** Unity Development\
**Tags:** unity\
**Created:** [August 30, 2022, 11:50am UTC](https://forum.magicleap.cloud/t/zif-errors/718 "2022-08-30T11:50:04Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![daniel](https://avatars.discourse-cdn.com/v4/letter/d/3ec8ea/32.png) [@daniel](https://forum.magicleap.cloud/u/daniel)\
**Post date:** [August 30, 2022, 11:50am UTC](https://forum.magicleap.cloud/t/zif-errors/718/1 "2022-08-30T11:50:04Z")

</div>

Installed ZIF, now when I run I get errors relating to the Android SDK not present. Even if running without starting ZIF.

**Unity Editor version** : 2022.2.05b  
**ML2 OS version** : B3E.220721.07-R.027 (user)  
**MLSDK version** : 0.53.2

 ![image](https://us1.discourse-cdn.com/flex019/uploads/magicleap1/original/1X/b25df5e8e5d0ab87a853581180482a5056a6185f.png)

**Error messages from logs** (syntax-highlighting is supported via Markdown):

[ZIF] Android SDK not found: Expected contents are missing from the location; see ZI logs for more information  
UnityEngine.Debug:LogErrorFormat (string,object)  
MagicLeap.ZI.AndroidSdkPathProvider:Update (string,bool) (at Library/PackageCache/com.magicleap.zifunity@e8996832c6eb/ZIFUnity/ZIBridge/ServiceProviders/AndroidSdkPathProvider.cs:65)  
MagicLeap.ZI.ZIBridge:UpdateSDKPaths (bool) (at Library/PackageCache/com.magicleap.zifunity@e8996832c6eb/ZIFUnity/ZIBridge/ZIBridgeEnvironmentManagement.cs:62)  
MagicLeap.ZI.ZIBridge:OnEditorApplicationUpdate () (at Library/PackageCache/com.magicleap.zifunity@e8996832c6eb/ZIFUnity/ZIBridge/ZIBridge.cs:65)  
UnityEditor.EditorApplication:Internal\_CallUpdateFunctions ()

NullReferenceException: Object reference not set to an instance of an object  
ZIPoseHarness.Update () (at Library/PackageCache/com.magicleap.zifunity@e8996832c6eb/Runtime/ZIPoseHarness.cs:32)

---

<div class="post-metadata">

**Author:** ![kvlasova](https://avatars.discourse-cdn.com/v4/letter/k/f6c823/32.png) [@kvlasova](https://forum.magicleap.cloud/u/kvlasova)\
**Post date:** [August 30, 2022, 3:31pm UTC](https://forum.magicleap.cloud/t/zif-errors/718/2 "2022-08-30T15:31:48Z")

</div>

Hi Daniel,

Have you restarted the Unity Editor after installing the ZIF package?

---

<div class="post-metadata">

**Author:** ![sengelman](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.magicleap.cloud/sengelman/32/11_2.png) [@sengelman](https://forum.magicleap.cloud/u/sengelman)\
**Post date:** [September 13, 2022, 11:46pm UTC](https://forum.magicleap.cloud/t/zif-errors/718/3 "2022-09-13T23:46:45Z")

</div>

These logs look like they're from a MacBook. If they are from an M1 variant, we do not expect the Magic Leap App Simulator for Unity (formerly known as ZIF) to work on them just yet.

However, you don't need to use this to use the App Simulator (formerly known as Zero Iteration). A few links:

> [@September Software Release](https://forum.magicleap.cloud/t/september-software-release/849/2):
>
> Please do not ignore our message regarding [The Lab 2.0 Deprecation/Magic Leap Hub Installation](https://forum.magicleap.cloud/t/the-lab-2-0-deprecation-magic-leap-hub-installation/848).

- [App Simulator Setup](https://developer-docs.magicleap.cloud/docs/guides/developer-tools/ml-hub/app-sim/app-sim-setup)

- [App Simulator Usage](https://developer-docs.magicleap.cloud/docs/guides/developer-tools/ml-hub/app-sim/using-app-sim)