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[GH-ISSUE #2177] AmneziaVPN fails to start on Ubuntu 25.10 due to missing Qt6 dependencies #969

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opened 2026-10-13 20:31:55 +00:00 by bsakaguchi · 6 comments

bsakaguchi commented

2026-10-13 20:31:55 +00:00

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Originally created by @levtlevt on GitHub (Jan 31, 2026).
Original GitHub issue: https://github.com/amnezia-vpn/amnezia-client/issues/2177

Describe the bug

AmneziaVPN fails to start on Ubuntu 25.10 "Questing Quokka" due to missing Qt6 runtime dependencies. The application installs successfully but crashes immediately when launched from the desktop menu or command line.

To Reproduce

Steps to reproduce the behavior:

Install AmneziaVPN (tested with version 4.8.12.9) on Ubuntu 25.10 using the Linux installer
Launch AmneziaVPN from the application menu or run AmneziaVPN from terminal
Application crashes immediately with "Aborted (core dumped)"
No GUI window appears

Expected behavior

AmneziaVPN should launch and display the main application window.

Log files

Initial error:
/opt/AmneziaVPN/client/bin/AmneziaVPN: error while loading shared libraries: libOpenGL.so.0: cannot open shared object file: No such file or directory

After installing libopengl0:

qt.qpa.plugin: Could not find the Qt platform plugin "wayland" in "/opt/AmneziaVPN/client/plugins//platforms:"
qt.qpa.plugin: From 6.5.0, xcb-cursor0 or libxcb-cursor0 is needed to load the Qt xcb platform plugin.
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "/opt/AmneziaVPN/client/plugins//platforms:" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: linuxfb, offscreen, xcb, minimal, minimalegl, eglfs.

Aborted (core dumped)

Desktop Information

OS: Ubuntu 25.10 "Questing Quokka"
Desktop Environment: GNOME (Wayland session)
AmneziaVPN Version: 4.8.12.9
Kernel: Linux 6.17.0-8-generic

Workaround

The issue can be resolved by manually installing the missing Qt6 dependencies:

sudo apt install libopengl0 qt6-wayland libxcb-cursor0

Additional Context

The AmneziaVPN Linux installer does not automatically install these required Qt6 dependencies on Ubuntu/Debian-based systems. This appears to be specific to newer Ubuntu versions (25.10) which may have different default package selections.

Suggested Fix:

Update the Linux installer to check for and install these dependencies on Ubuntu/Debian-based systems, or document these requirements in the installation instructions.

Originally created by @levtlevt on GitHub (Jan 31, 2026). Original GitHub issue: https://github.com/amnezia-vpn/amnezia-client/issues/2177 ### Describe the bug AmneziaVPN fails to start on Ubuntu 25.10 "Questing Quokka" due to missing Qt6 runtime dependencies. The application installs successfully but crashes immediately when launched from the desktop menu or command line. ### To Reproduce Steps to reproduce the behavior: 1. Install AmneziaVPN (tested with version 4.8.12.9) on Ubuntu 25.10 using the Linux installer 2. Launch AmneziaVPN from the application menu or run `AmneziaVPN` from terminal 3. Application crashes immediately with "Aborted (core dumped)" 4. No GUI window appears ### Expected behavior AmneziaVPN should launch and display the main application window. ### Log files **Initial error:** /opt/AmneziaVPN/client/bin/AmneziaVPN: error while loading shared libraries: libOpenGL.so.0: cannot open shared object file: No such file or directory **After installing `libopengl0`:** qt.qpa.plugin: Could not find the Qt platform plugin "wayland" in "/opt/AmneziaVPN/client/plugins//platforms:" qt.qpa.plugin: From 6.5.0, xcb-cursor0 or libxcb-cursor0 is needed to load the Qt xcb platform plugin. qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "/opt/AmneziaVPN/client/plugins//platforms:" even though it was found. This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem. Available platform plugins are: linuxfb, offscreen, xcb, minimal, minimalegl, eglfs. Aborted (core dumped) ### Desktop Information - **OS:** Ubuntu 25.10 "Questing Quokka" - **Desktop Environment:** GNOME (Wayland session) - **AmneziaVPN Version:** 4.8.12.9 - **Kernel:** Linux 6.17.0-8-generic ### Workaround The issue can be resolved by manually installing the missing Qt6 dependencies: ```bash sudo apt install libopengl0 qt6-wayland libxcb-cursor0 ``` **Additional Context** The AmneziaVPN Linux installer does not automatically install these required Qt6 dependencies on Ubuntu/Debian-based systems. This appears to be specific to newer Ubuntu versions (25.10) which may have different default package selections. **Suggested Fix:** Update the Linux installer to check for and install these dependencies on Ubuntu/Debian-based systems, or document these requirements in the installation instructions.

bsakaguchi commented

2026-10-13 20:31:57 +00:00

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@alexted commented on GitHub (Feb 3, 2026):

I have the same problem on Manjaro Linux 26.0.2
It looks like:

run app from console:

qt.qpa.plugin: Could not find the Qt platform plugin "wayland" in "/opt/AmneziaVPN/client/plugins//platforms:"
QSystemTrayIcon::setVisible: No Icon set
Updated website URL: "https://amnezia.org"
qt.qpa.services: Failed to register with host portal QDBusError("org.freedesktop.portal.Error.Failed", "Could not register app ID: Connection already associated with an application ID")
Logger::setServiceLogsEnabled(): Logs transitioned to be  disabled
Started AmneziaVPN version 4.8.12.9 f737928
Manjaro Linux (x86_64)
SSL backend: OpenSSL 3.0.13 30 Jan 2024
VpnConfigurator::getDnsForConfig "1.1.1.1" "1.0.0.1"
"ConnectToVpn, Server index is 1, container is amnezia-openvpn-cloak, route mode is" Settings::VpnAllExceptSites
Set config data /tmp/AmneziaVPN.JzlRXF
OpenVpnOverCloakProtocol::start() /opt/AmneziaVPN/client/bin//ck-client -c /tmp/AmneziaVPN.TIaDqn -l 1194
VpnProtocol::setConnectionState "Connecting..."
Connection state: 'Connecting...'
OpenVpnProtocol::stop()
VpnProtocol::setConnectionState "Disconnecting..."
Connection state: 'Disconnecting...'
ck-client: time="2026-02-03T12:36:49+03:00" level=info msg="Starting standalone mode"

ck-client: time="2026-02-03T12:36:49+03:00" level=info msg="Listening on TCP 127.0.0.1:1194 for openvpn client"

VpnProtocol::setConnectionState "Disconnected"
Connection state: 'Disconnected'
OpenVpnProtocol::start mgmt port selected: 48329
VpnProtocol::setConnectionState "Connecting..."
Connection state: 'Connecting...'
"--config /tmp/AmneziaVPN.JzlRXF --management 127.0.0.1 48329 --management-client"
PrivilegedProcess stateChanged QProcess::Starting
PrivilegedProcess stateChanged QProcess::Running
PrivilegedProcess stateChanged QProcess::NotRunning
VpnProtocol::setConnectionState "Disconnected"
Connection state: 'Disconnected'
QIODevice::read (QNetworkReplyHttpImpl): device not open
failed to decrypt the data

@alexted commented on GitHub (Feb 3, 2026): I have the same problem on Manjaro Linux 26.0.2 It looks like: <img width="517" height="595" alt="Image" src="https://github.com/user-attachments/assets/b14daa69-e827-421e-94f5-3fa8bea1a20b" /> run app from console: ``` qt.qpa.plugin: Could not find the Qt platform plugin "wayland" in "/opt/AmneziaVPN/client/plugins//platforms:" QSystemTrayIcon::setVisible: No Icon set Updated website URL: "https://amnezia.org" qt.qpa.services: Failed to register with host portal QDBusError("org.freedesktop.portal.Error.Failed", "Could not register app ID: Connection already associated with an application ID") Logger::setServiceLogsEnabled(): Logs transitioned to be disabled Started AmneziaVPN version 4.8.12.9 f737928 Manjaro Linux (x86_64) SSL backend: OpenSSL 3.0.13 30 Jan 2024 VpnConfigurator::getDnsForConfig "1.1.1.1" "1.0.0.1" "ConnectToVpn, Server index is 1, container is amnezia-openvpn-cloak, route mode is" Settings::VpnAllExceptSites Set config data /tmp/AmneziaVPN.JzlRXF OpenVpnOverCloakProtocol::start() /opt/AmneziaVPN/client/bin//ck-client -c /tmp/AmneziaVPN.TIaDqn -l 1194 VpnProtocol::setConnectionState "Connecting..." Connection state: 'Connecting...' OpenVpnProtocol::stop() VpnProtocol::setConnectionState "Disconnecting..." Connection state: 'Disconnecting...' ck-client: time="2026-02-03T12:36:49+03:00" level=info msg="Starting standalone mode" ck-client: time="2026-02-03T12:36:49+03:00" level=info msg="Listening on TCP 127.0.0.1:1194 for openvpn client" VpnProtocol::setConnectionState "Disconnected" Connection state: 'Disconnected' OpenVpnProtocol::start mgmt port selected: 48329 VpnProtocol::setConnectionState "Connecting..." Connection state: 'Connecting...' "--config /tmp/AmneziaVPN.JzlRXF --management 127.0.0.1 48329 --management-client" PrivilegedProcess stateChanged QProcess::Starting PrivilegedProcess stateChanged QProcess::Running PrivilegedProcess stateChanged QProcess::NotRunning VpnProtocol::setConnectionState "Disconnected" Connection state: 'Disconnected' QIODevice::read (QNetworkReplyHttpImpl): device not open failed to decrypt the data ```

bsakaguchi commented

2026-10-13 20:31:57 +00:00

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@kotudemo commented on GitHub (Feb 5, 2026):

same issue on arch linux

kd@rach ~> AmneziaVPN
qt.qpa.plugin: Could not find the Qt platform plugin "wayland" in "/opt/AmneziaVPN/client/plugins//platforms:"
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, xcb.

/usr/bin/AmneziaVPN: line 37: 66972 Aborted                    (core dumped) "$BASE_DIR/bin/AmneziaVPN" "$@"
kd@rach ~ [SIGABRT]>

@kotudemo commented on GitHub (Feb 5, 2026): same issue on arch linux ``` kd@rach ~> AmneziaVPN qt.qpa.plugin: Could not find the Qt platform plugin "wayland" in "/opt/AmneziaVPN/client/plugins//platforms:" This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem. Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, xcb. /usr/bin/AmneziaVPN: line 37: 66972 Aborted (core dumped) "$BASE_DIR/bin/AmneziaVPN" "$@" kd@rach ~ [SIGABRT]> ```

bsakaguchi commented

2026-10-13 20:31:57 +00:00

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@doonto commented on GitHub (Feb 7, 2026):

same on ubuntu 24.10, really need this. cannot install Qt6. Cannot install Qt even with the official installator.

Could you AWOID PLEASE using this framework for the linux build?

@doonto commented on GitHub (Feb 7, 2026): same on ubuntu 24.10, really need this. cannot install Qt6. Cannot install Qt even with the official installator. Could you AWOID PLEASE using this framework for the linux build?

bsakaguchi commented

2026-10-13 20:31:58 +00:00

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@gsrlabs commented on GitHub (Mar 12, 2026):

The same problem.
I got AmneziaVPN 4.8.12.9-1 to launch on Ubuntu 24.04 and Arch Linux by installing qt6-wayland. however, the client behaves erratically — the connect button is glitchy and no connection is established.

@gsrlabs commented on GitHub (Mar 12, 2026): The same problem. I got AmneziaVPN 4.8.12.9-1 to launch on Ubuntu 24.04 and Arch Linux by installing qt6-wayland. however, the client behaves erratically — the connect button is glitchy and no connection is established.

bsakaguchi commented

2026-10-13 20:31:58 +00:00

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@foobar-p5 commented on GitHub (Mar 21, 2026):

same problem as kotudemo's, on artix.

@foobar-p5 commented on GitHub (Mar 21, 2026): same problem as kotudemo's, on artix.

bsakaguchi commented

2026-10-13 20:31:58 +00:00

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@gsrlabs commented on GitHub (Mar 23, 2026):

I’ve written a simple CLI wrapper for awg-quick that lets you run AmneziaWG on Linux from the terminal as a lightweight alternative to the GUI.
It works seamlessly with AmneziaWG v2 configs and is fast and convenient to use. You can continue using the AmneziaWG UI to generate configuration files.
https://github.com/gsrlabs/acm

@gsrlabs commented on GitHub (Mar 23, 2026): I’ve written a simple CLI wrapper for awg-quick that lets you run AmneziaWG on Linux from the terminal as a lightweight alternative to the GUI. It works seamlessly with AmneziaWG v2 configs and is fast and convenient to use. You can continue using the AmneziaWG UI to generate configuration files. https://github.com/gsrlabs/acm

bsakaguchi referenced this issue

2026-10-13 20:42:01 +00:00

[GH-ISSUE #3063] VPN client management silently fails when SSH user has docker group but not sudo/wheel #1412

bsakaguchi referenced this issue

2026-10-13 20:42:02 +00:00

[GH-ISSUE #3063] VPN client management silently fails when SSH user has docker group but not sudo/wheel #1412