Failed to start Flutter renderer: No GL implementation is available - linux

Question

i create a simple "Hello Word" in flutter and enable web and linux platform to test is both,in chrome everything was ok and i see my first web app in flutter "Hello word",but in my desktop apps on Linux starting but not displaying anything and give me this message in terminal
libEGL warning: MESA-LOADER: failed to open swrast: /lib64/libpthread.so.0: version `GLIBC_PRIVATE' not found (required by /snap/flutter/current/usr/lib/x86_64-linux-gnu/dri/../../../../lib/x86_64-linux-gnu/librt.so.1) (search paths /snap/flutter/current/usr/lib/x86_64-linux-gnu/dri, suffix _dri)
** (app:22248): WARNING **: 05:45:50.289: Failed to start Flutter renderer: No GL implementation is available
Error waiting for a debug connection: The log reader stopped unexpectedly.
Error launching application on Linux.
and this is my hello word apps
import 'package:flutter/material.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
#override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Welcome to Flutter',
home: Scaffold(
appBar: AppBar(
title: const Text('Welcome to Flutter'),
),
body: const Center(
child: Text('Hello World'),
),
),
);
}
}
i use fedora 35 beta
i hope u can help me guys and thanks you

Answer 1

Judging from the error message, it seems like it is an error with glibc or glibc-devel not being installed. I am running Fedora 34, so I can't search F35's repos but if you run dnf repoquery --whatprovides 'libpthread.so*' it should give you the name of the packages required for it to run.
If the packages are already installed, please let me know and I will see if I can help you out by editing this answer.
EDIT: I don't have any experience with Snap but, after some digging, it looks like you can't expose certain folders in Snap, so a quick (albeit dirty) fix is to add the file flutter cannot find to the folder containing the Snap package.
You could also try this:
$ snap run --shell <snap>.<command>
$ env
XDG_VTNR=1
SSH_AGENT_PID=5543
XDG_SESSION_ID=2
SNAP_USER_COMMON=/home/<user>/snap/<snap>/common
SNAP_LIBRARY_PATH=/var/lib/snapd/lib/gl:
SNAP_COMMON=/var/snap/<snap>/common
[...]
Edit the line from SNAP_LIBRARY_PATH=/var/lib/snapd/lib/gl: to SNAP_LIBRARY_PATH=/var/lib/snapd/lib/gl:/path/to/folder/containing/libpthread, save the edits and try to launch the app again.
You can find where libpthread is located by opening your file manager, browse to / (in GNOME this is under 'Other locations' > 'Computer' in the left-hand navigation pane), unhide hidden folders (Ctrl + H) and use the search function. This should show where the file is located (on my machine it's under /usr/lib64) and you add the folder to the SNAP_LIBRARY_PATH.

Answer 2

The issue is because of the snap install, what worked for me is replacing the snap version with the manual install from github. You can also use the tarball.
git clone https://github.com/flutter/flutter.git -b stable
now to add flutter to path:
sudo gedit ~/.bashrc
Assuming ur flutter install was at /home/user/ add this at the end of the file:
export PATH="$PATH:/flutter/bin"
If ur flutter install is somewhere else then change the directory accordingly
After saving and exiting, refresh ur .bashrc file with:
source ~/.bashrc
Now check if its added to path with:
echo $PATH
If you see a /flutter/bin then ur doing fine. To check if flutter's installed:
flutter --version
To add any missing dependencies (if ur on Fedora) use:
sudo dnf install bash curl file git unzip which xz zip mesa-libGLU clang cmake ninja-build pkg-config gtk3-devel
On Ubuntu based distros it is
sudo apt-get install clang cmake ninja-build pkg-config libgtk-3-dev liblzma-dev