# Unexpected error occured **URL:** \ **Category:** Publishing\ **Created:** [December 6, 2024, 4:47pm UTC](https://community.thunkable.com/t/unexpected-error-occured/3395282 "2024-12-06T16:47:03Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Coes\_Italia](https://avatars.discourse-cdn.com/v4/letter/c/779978/32.png) [@Coes\_Italia](https://community.thunkable.com/u/Coes_Italia)\ **Post date:** [December 6, 2024, 4:47pm UTC](https://community.thunkable.com/t/unexpected-error-occured/3395282/1 "2024-12-06T16:47:03Z")
![WhatsApp Image 2024-12-06 at 17.30.58](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/c/1/c12e3e8b9759df070eec58de06f70c6fd3791fbc.jpeg) Hello everyone, I updated my app but now it crashes and displays this error… any suggestions? thanks ---
**Author:** ![ioannis](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/ioannis/32/146956_2.png) [@ioannis](https://community.thunkable.com/u/ioannis)\ **Post date:** [December 6, 2024, 4:53pm UTC](https://community.thunkable.com/t/unexpected-error-occured/3395282/2 "2024-12-06T16:53:20Z")
Hello @Coes_Italia You will need to add a [Tracking Usage Description](https://docs.thunkable.com/publishing/publish-to-app-store-ios/tracking-usage-description) ---
**Author:** ![Coes\_Italia](https://avatars.discourse-cdn.com/v4/letter/c/779978/32.png) [@Coes\_Italia](https://community.thunkable.com/u/Coes_Italia)\ **Post date:** [December 6, 2024, 5:17pm UTC](https://community.thunkable.com/t/unexpected-error-occured/3395282/3 "2024-12-06T17:17:09Z")
As written here… ##What to Include in UTUD Messaging If your app does not contain AdMob, Location, Push Notifications, or a Web Viewer, then you should leave the Tracking Usage Description field blank. Do not enter a string explaining that you are not tracking anything. If there is any text in this box, Apple will think you are tracking your end users. I didn’t enter anything since I didn’t have anything ---
**Author:** ![ioannis](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/ioannis/32/146956_2.png) [@ioannis](https://community.thunkable.com/u/ioannis)\ **Post date:** [December 6, 2024, 5:21pm UTC](https://community.thunkable.com/t/unexpected-error-occured/3395282/4 "2024-12-06T17:21:03Z")
Could you please share the specific project URL with us so we can investigate it further? ![](https://downloads.intercomcdn.com/i/o/759644115/d4a89684a0bda74ab75c59e6/Screenshot+2023-06-08+at+4.13.55+PM.png) You could copy it from the top of your browser. This way we could find the best solution for you. ---
**Author:** ![Coes\_Italia](https://avatars.discourse-cdn.com/v4/letter/c/779978/32.png) [@Coes\_Italia](https://community.thunkable.com/u/Coes_Italia)\ **Post date:** [December 6, 2024, 5:24pm UTC](https://community.thunkable.com/t/unexpected-error-occured/3395282/5 "2024-12-06T17:24:20Z")
[https://x.thunkable.com/projects/674595c3d019d87ea2f60594/Screen1/designer](https://x.thunkable.com/projects/674595c3d019d87ea2f60594/Screen1/designer) ---
**Author:** ![ioannis](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/ioannis/32/146956_2.png) [@ioannis](https://community.thunkable.com/u/ioannis)\ **Post date:** [December 6, 2024, 5:41pm UTC](https://community.thunkable.com/t/unexpected-error-occured/3395282/6 "2024-12-06T17:41:04Z")
@Coes_Italia Thank you for sharing your project. The [Tracking Usage Description](https://docs.thunkable.com/publishing/publish-to-app-store-ios/tracking-usage-description) is required because the project has a location sensor: ![image](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/6/f/6fb4f1827d739e7db539edc15dd04ca1f0f83bf2.png) ---
**Author:** ![Coes\_Italia](https://avatars.discourse-cdn.com/v4/letter/c/779978/32.png) [@Coes\_Italia](https://community.thunkable.com/u/Coes_Italia)\ **Post date:** [December 6, 2024, 5:46pm UTC](https://community.thunkable.com/t/unexpected-error-occured/3395282/7 "2024-12-06T17:46:08Z")
Thanks for your help… It’s been years since I added new components to the app, in the last few years I’ve only updated the app for new versions of iPhone… I update the app regularly every 4/5 months. It’s always worked well… even with the location\_sensors component… I didn’t add or change anything ---
**Author:** ![Coes\_Italia](https://avatars.discourse-cdn.com/v4/letter/c/779978/32.png) [@Coes\_Italia](https://community.thunkable.com/u/Coes_Italia)\ **Post date:** [December 8, 2024, 5:00pm UTC](https://community.thunkable.com/t/unexpected-error-occured/3395282/8 "2024-12-08T17:00:39Z")
Solved. Thank you very much