# Stupid error
**URL:** https://forum.makecode.com/t/stupid-error/19799
**Category:** Help
**Created:** [May 9, 2023, 4:21pm UTC](https://forum.makecode.com/t/stupid-error/19799 "2023-05-09T16:21:20Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@Samsano](https://forum.makecode.com/u/Samsano)
#### Post date: [May 9, 2023, 4:21pm UTC](https://forum.makecode.com/t/stupid-error/19799/1 "2023-05-09T16:21:20Z")
Hi, i am making a game and needs some help with a stupid error. The error only occurs when i try to convert to blocks.
> Line 1: Cannot read properties of undefined(reading ‘length’)
The thing is, that the first line is:
```JS
namespace SpriteKind {
```
So there sholdn’t really be anytthing wrong with the first line, and when i go in debug mode. There is no error, it **only** happens when i try converting to blocks. The error persist when i try copying the code over to a seperate game.
---
### Author:  [@KIKIvsIT](https://forum.makecode.com/u/KIKIvsIT)
#### Post date: [May 9, 2023, 4:22pm UTC](https://forum.makecode.com/t/stupid-error/19799/2 "2023-05-09T16:22:01Z")
@Samsano Would you mind sharing a link to your project so we can try to help debug?
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### Author:  [@Samsano](https://forum.makecode.com/u/Samsano)
#### Post date: [May 9, 2023, 7:25pm UTC](https://forum.makecode.com/t/stupid-error/19799/3 "2023-05-09T19:25:55Z")
> **[Tenormalia,](https://arcade.makecode.com/41612-66998-57698-57179)**
>
> Made with ❤️ in Microsoft MakeCode Arcade.
here
---
### Author:  [@Destroyer2](https://forum.makecode.com/u/Destroyer2)
#### Post date: [May 9, 2023, 8:31pm UTC](https://forum.makecode.com/t/stupid-error/19799/4 "2023-05-09T20:31:46Z")
OK @Samsano I see your problem. I have made the game to show the cursor and edited the game but here is the thing YOU CANNOT COPY SPRITE CODES TO OTHER PROGRAMS. I really sorry If your upset about that just duplicate the program and make a new one there. Here is the one That I modified
[BUG](https://arcade.makecode.com/S34466-27394-34591-86862)
---
### Author:  [@YuHayate](https://forum.makecode.com/u/YuHayate)
#### Post date: [May 10, 2023, 5:10pm UTC](https://forum.makecode.com/t/stupid-error/19799/5 "2023-05-10T17:10:04Z")
what i do to not have duplecate sprites in the game i name all the sprites in Hex code
for exemple
insted of naming a sprite “TempImg” i name it “ID54656D70496D67” or ID + 54 65 6D 70 49 6D 67 witch is hex for TempImg
---
### Author:  [@Samsano](https://forum.makecode.com/u/Samsano)
#### Post date: [May 12, 2023, 5:20pm UTC](https://forum.makecode.com/t/stupid-error/19799/6 "2023-05-12T17:20:33Z")
What does this have to do with my question?
---
### Author:  [@jwunderl](https://forum.makecode.com/u/jwunderl)
#### Post date: [May 12, 2023, 5:31pm UTC](https://forum.makecode.com/t/stupid-error/19799/7 "2023-05-12T17:31:33Z")
Ah hm, looks like there’s a ts-\>blocks decompiler bug this is hitting when returning just the top level variable directly in a `pauseUntil`; it’s annoying but until it’s fixed easiest work around is just to return !!variable; here’s a link as an example:
> **[Tenormalia,](https://arcade.makecode.com/90628-26480-41386-69675)**
>
> Made with ❤️ in Microsoft MakeCode Arcade.
