# MakeCode for Adafruit CPX App downloading Error

**URL:** <https://forum.core-electronics.com.au/t/makecode-for-adafruit-cpx-app-downloading-error/7425>\
**Category:** Makeblock\
**Created:** [15 March 2020 03:58 UTC](https://forum.core-electronics.com.au/t/makecode-for-adafruit-cpx-app-downloading-error/7425 "2020-03-15T03:58:18Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Jim38408](https://avatars.discourse-cdn.com/v4/letter/j/e95f7d/32.png) [@Jim38408](https://forum.core-electronics.com.au/u/Jim38408)\
**Post date:** [15 March 2020 03:58 UTC](https://forum.core-electronics.com.au/t/makecode-for-adafruit-cpx-app-downloading-error/7425/1 "2020-03-15T03:58:18Z")

</div>

Looking for some help/advice understanding/resolution of this problem.

Using the MakeCode for Adafruit Circuit Playgound Express app the error occurs when downloading the code to CPX on some student Windows’s PC’s and not others. USB data cables ok and cross checked. The CPX drive is visible and seems ok. Checked problem online and the closest I came to seeing this is in the link below but no resolution described.

Error Description  
MakeCode for Adafruit on Windows 10 will not detect Circuit Playground Express

Link to similar experience:  
[https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2FMicrosoft%2Fpxt-adafruit%2Fissues%2F826&data=02|01||b5e07288a43a4c48818008d7c4d098aa|84df9e7fe9f640afb435aaaaaaaaaaaa|1|0|637194272498565295&sdata=EjXoGxQGyaXAKt4uk%2F25ZH53v6KFH96MvslddkDfNAc%3D&reserved=0](https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2FMicrosoft%2Fpxt-adafruit%2Fissues%2F826&data=02%7C01%7C%7Cb5e07288a43a4c48818008d7c4d098aa%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637194272498565295&sdata=EjXoGxQGyaXAKt4uk%2F25ZH53v6KFH96MvslddkDfNAc%3D&reserved=0)

Any assistance would be greatly appreciated  
Jim