# voxl-camera-server behaving differently

Source: https://forum.modalai.com/topic/4554/voxl-camera-server-behaving-differently
Category: VOXL SDK and Software (https://forum.modalai.com/category/47/voxl-sdk-and-software)
Tags: camera
Posted: 2025-06-30 21:44:35 UTC by dvz
Replies: 4 · Views: 1363

## dvz · 2025-06-30 21:44:35 UTC

I ran the voxl-vision-hub for the first time, installed ROS and ran voxl-configure-mpa.
After running those commands, the command:

```
voxl-camera-server -l
``` 

now only returns this:

```
====================================
Number of cameras detected: 1
====================================
```

 instead of the longer information output that is shown in the documentation [docs](https://docs.modalai.com/debugging-camera-issues/). It also causes the camera to not work in the portal anymore until I just run voxl-camera-server.

I also found that all the servers listed underneath the voxl-vision-hub as requirements are found, except for the apriltag-server. How do i get the apriltag server running?

## Reply by tom (ModalAI staff) · 2025-06-30 23:08:43 UTC

@dvz What SDK is this on? This issue should be fixed in SDK 1.5.0

## Reply by Alex Kushleyev (ModalAI staff) · 2025-07-01 04:01:55 UTC (in reply to tom)

It looks like this issue was only in the SDK 1.4.4 . Other SDK releases should be OK. A bug in the printing function in `libmodal-journal` library caused the prints to stop showing up.

Alex

## Reply by dvz · 2025-07-01 18:24:50 UTC

This worked. Thank you.

However, one thing I still cannot find is the apriltag-server. It is listed as a requirement on the voxl-vision-hub. When I try to start the server, I am told it could not be found, and I also cannot find an apriltag-server in the other documentation pages about relocalization and apriltags.

## Reply by tom (ModalAI staff) · 2025-07-01 18:30:33 UTC (in reply to dvz)

@dvz https://gitlab.com/WondesenB/voxl-tag-detector