# I need help making my compass app
**URL:** https://community.thunkable.com/t/i-need-help-making-my-compass-app/3711065
**Category:** Issues / Bugs
**Tags:** help
**Created:** [April 3, 2025, 9:10am UTC](https://community.thunkable.com/t/i-need-help-making-my-compass-app/3711065 "2025-04-03T09:10:54Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@himchong29c0gr6t](https://community.thunkable.com/u/himchong29c0gr6t)
#### Post date: [April 3, 2025, 9:10am UTC](https://community.thunkable.com/t/i-need-help-making-my-compass-app/3711065/1 "2025-04-03T09:10:54Z")
I am trying to make a compass app but there’s an issue.
This is the link to my app: [Thunkable](https://x.thunkable.com/projects/67ed667005fa1b9110b0eedb/db9e1929-a140-4b21-be77-d36d195c03fa/blocks)
When I try to live view it from my phone, it says **“Something has gone wrong. Check your blocks and reset this page”** , but I don’t know what is my error. Can someone **check my code** and **see what’s wrong** with it? Thanks.
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### Author:  [@himchong29c0gr6t](https://community.thunkable.com/u/himchong29c0gr6t)
#### Post date: [April 3, 2025, 9:17am UTC](https://community.thunkable.com/t/i-need-help-making-my-compass-app/3711065/2 "2025-04-03T09:17:02Z")
Also one more thing I forgot to say, the error message pops up on both my iPhone and Samsung device. If I try web view it lets me try the app, but I cannot test the compass itself because my computer doesn’t have a magnetometer.
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### Author:  [@tatiang](https://community.thunkable.com/u/tatiang)
#### Post date: [April 3, 2025, 2:46pm UTC](https://community.thunkable.com/t/i-need-help-making-my-compass-app/3711065/3 "2025-04-03T14:46:01Z")
The one thing I tried is to initialize your lists as empty lists. Because you’re inserting list items into a variable that doesn’t yet have a type. But the app still crashes so that wasn’t the fix.
Then I noticed that you are using green blocks as variables. They aren’t meant to be used that way. They’re more like constants. I think you just accidentally swapped the order. Try this, which works for me:
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### Author:  [@himchong29c0gr6t](https://community.thunkable.com/u/himchong29c0gr6t)
#### Post date: [April 24, 2025, 3:12pm UTC](https://community.thunkable.com/t/i-need-help-making-my-compass-app/3711065/4 "2025-04-24T15:12:18Z")
Hi there! I tried the new code you shown in the picture but it does not seem to work. This is my link:
> **[Thunkable](https://x.thunkable.com/projects/67ed667005fa1b9110b0eedb/7d1587b6-36c2-42de-b177-7603f707d1af/blocks)**
I might have overlooked something, can you help me check it? Thank you.
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### Author:  [@shrey](https://community.thunkable.com/u/shrey)
#### Post date: [April 24, 2025, 4:42pm UTC](https://community.thunkable.com/t/i-need-help-making-my-compass-app/3711065/5 "2025-04-24T16:42:19Z")
Haven’t tested this yet, but perhaps you could do this:
The purple Call block is found under the Any Component tab
Found this on @tatiang 's old post
> [@Magnetometer compass heading how?](https://community.thunkable.com/t/magnetometer-compass-heading-how/1365284/6):
>
> Ah, I see now… a bit hidden:
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### Author:  [@tatiang](https://community.thunkable.com/u/tatiang)
#### Post date: [April 25, 2025, 3:18pm UTC](https://community.thunkable.com/t/i-need-help-making-my-compass-app/3711065/6 "2025-04-25T15:18:45Z")
To troubleshoot those blocks, I would recommend a technique for checking variable values: [Debugging in Thunkable X (Video)](https://community.thunkable.com/t/debugging-in-thunkable-x-video/849471)