# Error while buiding Voxl2 PX4

Source: https://forum.modalai.com/topic/2282/error-while-buiding-voxl2-px4
Category: VOXL 2 and VOXL 2 Mini (https://forum.modalai.com/category/26/voxl-2-and-voxl-2-mini)
Tags: voxl-2
Posted: 2023-06-19 06:43:06 UTC by Vaibhav Usapkar
Replies: 1 · Views: 506

## Vaibhav Usapkar · 2023-06-19 06:43:06 UTC

Hi

I am followed the steps listed on [voxl2-px4-build-guide](https://docs.modalai.com/voxl2-px4-build-guide/).
While doing so i am having error while executing "./build.sh" step.

Please find the attached images of the error.
![build_error.png](https://forum.modalai.com/assets/uploads/files/1687156744768-build_error.png) 

The directory to be listed is seen here listed in "ls" command

![listing.png](https://forum.modalai.com/assets/uploads/files/1687156742719-listing.png) 

@Chad-Sweet  @Eric-Katzfey Am i missing some step here?

## Reply by Eric Katzfey (ModalAI staff) · 2023-06-19 17:14:14 UTC

@Vaibhav-Usapkar Your `ls` showing it in the file system is showing it outside of the docker container. You will need to run the base docker container and do `ls` there to see what is in that directory. How did you get the gcc-linaro-7.5.0-2019.12-x86_64_aarch64-linux-gnu.tar file? That shouldn't be in your local directory.