# voxl-mapper does not run: libgomp.so.1 does not exist

Source: https://forum.modalai.com/topic/1194/voxl-mapper-does-not-run-libgomp-so-1-does-not-exist
Category: General Questions (https://forum.modalai.com/category/2/general-questions)
Posted: 2022-08-10 08:22:17 UTC by ahmed-mustahid
Replies: 1 · Views: 762

## ahmed-mustahid · 2022-08-10 08:22:17 UTC

I install voxl-mapper without any issue:
```
root@apq8096:~# opkg install voxl-mapper
Installing voxl-mapper (0.0.6) on root.
Configuring voxl-mapper.

Done installing voxl-mapper
```
But I cannot run it due to the following error:
```
root@apq8096:~# voxl-mapper 
voxl-mapper: error while loading shared libraries: libgomp.so.1: cannot open shared object file: No such file or directory
```
I have not installed/removed any package before this. 
I have tried obtaining libgomp.so from [here](https://packages.debian.org/sid/arm64/libgomp1/download) but could not install due to the absence of `dpkg-deb`. Even if I had `dpkg-deb`, I am not sure where I should install it so that the above error is resolved. 
My voxl version:
```
root@apq8096:~# voxl-version
--------------------------------------------------------------------------------
system-image: 3.8.0
kernel:       #1 SMP PREEMPT Tue Apr 26 18:08:39 UTC 2022 3.18.71-perf
--------------------------------------------------------------------------------
hw version:   VOXL
--------------------------------------------------------------------------------
voxl-suite:   0.7.0
--------------------------------------------------------------------------------
```
Running services:
```
root@apq8096:~# voxl-inspect-services 
 Service Name         |  Enabled  |   Running   |  CPU Usage
---------------------------------------------------------------
 docker-autorun       | Disabled  | Not Running |  
 docker-daemon        | Disabled  | Not Running |  
 modallink-relink     | Disabled  | Not Running |  
 voxl-camera-server   |  Enabled  |   Running   |    17.3
 voxl-cpu-monitor     |  Enabled  |   Running   |     0.0
 voxl-dfs-server      | Disabled  | Not Running |  
 voxl-imu-server      |  Enabled  |   Running   |     0.0
 voxl-mavlink-server  |  Enabled  |   Running   |     0.0
 voxl-modem           | Disabled  | Not Running |  
 voxl-portal          |  Enabled  |   Running   |     0.0
 voxl-qvio-server     |  Enabled  |   Running   |     4.3
 voxl-streamer        | Disabled  | Not Running |  
 voxl-tag-detector    | Disabled  | Not Running |  
 voxl-tflite-server   | Disabled  | Not Running |  
 voxl-time-sync       | Disabled  | Not Running |  
 voxl-vision-px4      |  Enabled  |   Running   |     2.1
 voxl-wait-for-fs     |  Enabled  |  Completed  |  
```
```
root@apq8096:~# cat /etc/opkg/opkg.conf                  
################################################################
## This file has been automatically generated.
## Please use voxl-configure-opkg to modify it.
################################################################
dest root /
option lists_dir /var/lib/opkg/lists
arch all 1
arch arm64 7

src/gz modalai http://voxl-packages.modalai.com/dists/apq8096/stable/binary-arm64/
```

## Reply by Guest · 2022-08-10 16:58:49 UTC

Hi,

You will need to install the openmp package for voxl which can be found here http://voxl-packages.modalai.com/stable/.

The easiest way to do this would be to follow these steps:

1. Edit the /etc/opkg/opkg.conf file and change the last line from ```src/gz modalai http://voxl-packages.modalai.com/dists/apq8096/stable/binary-arm64/``` to ```src/gz modalai http://voxl-packages.modalai.com/stable/```
2. Run ```opkg update```

3. Run ```opkg install openmp```
4. Redit the /etc/opkg/opkg.conf file to change the last line back to the original i.e. ```src/gz modalai http://voxl-packages.modalai.com/dists/apq8096/stable/binary-arm64/```
5. Rerun ```opkg update```

Let me know if there are any issues.