Troubleshooting#

Error

Q: Why do I see the following error when running ./adbforwarder/ADBForwarder?

Platform: Linux
Unhandled exception. SharpAdbClient.Exceptions.AdbException:
The adb process returned error code 255 when running command start-server
    at SharpAdbClient.AdbCommandLineClient.RunAdbProcess(String command, List`1 errorOutput, List`1 standardOutput)
    at SharpAdbClient.AdbCommandLineClient.StartServer()
    at SharpAdbClient.AdbServer.StartServer(String adbPath, Boolean restartServerIfNewer)
    at ADBForwarder.Program.Main()
Aborted (core dumped)

A: This usually means ADB is not installed or the server is in a broken state. Try the following steps:

Check if ADB is installed:
```
adb version
```
If the command is not found, install ADB:
```
sudo apt update
sudo apt install adb
```
Kill and restart the ADB server:

ADB might have a zombie or corrupted background process. Run:
```
adb kill-server
adb start-server
```

After restarting the ADB server, try running ./adbforwarder/ADBForwarder again.

Error

Q: If you see “Graphics error” TODO

A: TODO

Note

If you build ALVR from source, make sure the host firewall is not blocking ports 9944, 8082, and 9942.

Disable and re-enable the firewall:

sudo ufw disable
sudo ufw enable

The firewall rule should be set automatically during the default ALVR dashboard installation. If you miss this step, you can add it manually by clicking Installation → Add firewall rules in the ALVR dashboard.

Troubleshooting#

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