# Error: pxt\_modules/ColorBlock/main.ts(1,1): error TS9200: non unique

**URL:** <https://forum.makecode.com/t/error-pxt-modules-colorblock-main-ts-1-1-error-ts9200-non-unique/15388>\
**Category:** Help\
**Tags:** extension\
**Created:** [September 16, 2022, 10:13pm UTC](https://forum.makecode.com/t/error-pxt-modules-colorblock-main-ts-1-1-error-ts9200-non-unique/15388 "2022-09-16T22:13:08Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![UnsignedArduino](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.makecode.com/unsignedarduino/32/592_2.png) [@UnsignedArduino](https://forum.makecode.com/u/UnsignedArduino)\
**Post date:** [September 16, 2022, 10:13pm UTC](https://forum.makecode.com/t/error-pxt-modules-colorblock-main-ts-1-1-error-ts9200-non-unique/15388/1 "2022-09-16T22:13:09Z")

</div>

In my games, I sometimes use the [ColorBlock](https://github.com/UnsignedArduino/ColorBlock) extension, and it appears to be killing all the hardware builds for releases.

Take my latest game, Racers:

> <https://github.com/UnsignedArduino/Racers/actions/runs/3070048207/jobs/4959371727>

The `bundle all` step is failing since it can’t find `built/arcade.uf2`, so I look up to the previous steps to see, and for `build D51`, `build F4`, and `build P0`, it ends with:

```auto
Error: pxt_modules/ColorBlock/main.ts(1,1): error TS9200: non unique

```

Funny enough, `build js` doesn’t fail, but it can’t deploy since the other builds failed.

I’m unsure why this doesn’t work for hardware builds, as there isn’t even anything in [`ColorBlock/main.ts`](https://github.com/UnsignedArduino/ColorBlock/blob/master/main.ts) anyways.

Does anyone have any idea why it won’t work?