Flutter application is extremely slow on linux. The performance tab shows 15fps and it never goes beyond that. I was unable to find any explanation or possible solution for this issue. Any suggestions?
clang version 10.0.0-4ubuntu1/
cmake version 3.16.3/
ninja version 1.10.0/
pkg-config version 0.29.1/
OS : Fedora Linux
For anyone potentially running into the same problem, this was either an issue with my OS or my flutter SDK. I initially installed the SDK using snap but after reinstalling my OS I installed it by cloning the github repo and setting the path variable etc... (the way explained in the official website) and the issue was resolved.
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I was trying to run a flutter app on Ubuntu 22.04 LTS. Everything was working fine. But, today this problem came up while running the app. The Flutter SDK fails to build the app throwing the below error.
/snap/flutter/130/usr/lib/x86_64-linux-gnu/gdk-pixbuf-2.0/../../../../lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.33' not found (required by /usr/lib/x86_64-linux-gnu/gio/modules/libgvfsdbus.so)
Failed to load module: /usr/lib/x86_64-linux-gnu/gio/modules/libgvfsdbus.so
After searching on the internet I realized I need a backward version of libc. If I do file /snap/flutter/130/usr/lib/x86_64-linux-gnu/gdk-pixbuf-2.0/../../../../lib/x86_64-linux-gnu/libc.so.6.
I get the result /snap/flutter/130/usr/lib/x86_64-linux-gnu/gdk-pixbuf-2.0/../../../../lib/x86_64-linux-gnu/libc.so.6: symbolic link to libc-2.31.so.
Probably I need to install libc-2.31. But, how? I did not find any solution. Both Flutter and Ubuntu are upgraded to the latest versions.
It's a snap problem with vscode.
First remove vscode :
sudo snap remove code
Then download the .deb of vscode here : https://code.visualstudio.com/docs/setup/linux
And install it with :
sudo apt install ./<file>.deb
moving to edge channel, snap refresh flutter --edge
running flutter upgrade
deleting build directory rm -r build/
running the application again flutter run -d linux
reference this
I had this problem. I just uninstalled and reinstalled flutter. It worked nice.
snap remove flutter
snap install flutter
flutter doctor
After searching on the internet I realized I need a backward version of libc.
No, you don't.
The error means: the version of GLIBC you are using is too old and does not satisfy requirements of the system libgvfsdbus.so which you are trying to load.
Your application appears to be using a custom version of GLIBC, located in /snap/flutter/130/lib/x86_64-linux-gnu/libc.so.6, which is older than the system-installed GLIBC (which is likely 2.33 or newer).
I don't know whether Flutter makes you use a custom GLIBC, or whether you chose to do so on your own. Either way, this seems like a terrible idea.
If you must use custom GLIBC for this app, then you should not use any system libraries (such as /usr/lib/x86_64-linux-gnu/gio/modules/libgvfsdbus.so) in it.
I am currently running emacs on Gentoo linux. My intention was to use all-the-icons ivy (I also downloaded all-the-icons-ivy). Unfortunately, all the icons come out confusing.
I have already run all-the-icons-install-fonts, per the wiki instructions. Does anyone know what is happening?
You may lack the fonts for all-the-icons.
The all-the-icons documentation recommends installing the fonts by running this command in Emacs:
M-x all-the-icons-install-fonts.
Alternatively, you can try installing the fonts using the package manager for your OS. For Gentoo, there's a package for all-the-icons here.
I ran into a similar issue on an Arch based distro, and was able to resolve it by installing all-the-iconts. For those using Arch based distros, the package can be found here.
i trying to create a appimage for my Linux system. Using qt-creator i have completed the programing and ran the app successfully . but when i am trying to make it appimage using linuxdeployQt i am facing some errors
linuxdeployqt 5 (commit 37631e5), build 631 built on 2019-01-25 22:47:58 UTC ERROR:
The host system is too new.
Please run on a system with a glibc version no newer than what comes with the oldest still-
supported mainstream distribution, which currently is glibc 2.20.
This is so that the resulting bundle will work on most still-supported Linux distributions.
For more information, please see
https://github.com/probonopd/linuxdeployqt/issues/340
i don't know what this issue is. when i visit the website, it is not clear also. So anyone familiar with this kind please put your help here.
It means that your glibc is too new.
That's correct, to work around this issue while using linuxdeployqt you have to choose as build environment an older system such as Centos 6 or Ubuntu 14.04.
As an alternative, you can use appimage-builder which allows producing AppImages on newer systems.
It means that your glibc is too new. I think it is supported glibc version comes with Ubuntu 14.04 as it is mentioned in herr https://github.com/probonopd/linuxdeployqt/issues/340. I have faced the same problem and still struggling to solve this issue.
I wanted to use Visual Studio Code for HaxeFlixel development and the Haxe extension noted that I needed Haxe 3.4.0. I went ahead and downloaded the new installer from the website and installed it on my laptop running Windows 10. However after installing it turned out that calling 'haxelib version' in the command prompt it still returned 3.3.0.
I tried rebooting. Uninstalling then rebooting and installing again. I could find nothing in the system environmental variables that could cause it. Tried updating the Haxe on my Desktop, and had the same issue. Which is running windows 8.1 on it.
Does someone know what might be the cause? Thank you for your time in advance.
To check the Haxe version, use haxe -version. haxelib is a separate application and can have a version number that's different from the compiler's version.
Haxelib 3.3.0 appears to be the version shipped with Haxe 3.4.0-rc.1.
While porting Qt project from windows to linux(ubuntu) i faced with the following issue:
on windows Qt version 4.8.1 is installed
on linux 4.6.3 in which some functionalities availiable in higer version 4.8.1 don`t yet implemented (ex. QUdpSocket::joinMultiCastGroup).
I see only one solution to this problem: upgrade Qt version on linux to 4.8.1.
How can I do this?
On linux I got installed libqt4-dev, qmake.
Solved: I changed repository from squeeze (stable) to wheezy(testing), in wheezy latest Qt version is 4.8.1, which is perfectly suits my needs.
Using package manager I found package libqt4-dev and selected it for update.
That is all, the whole process took 5 minutes.
Disadvantages:
- As I run Debian on Virtual Box after changing repository I had to reinstall guest additions
- wheezy is less stable than squeeze (I haven`t faced yet with stablilty problem)
I guess you can use Upgrade option in the Qt Creator.
Or you can download latest version from Download Qt, the cross-platform application framework
Or you could try to update using something like apt-get install(upgrade) libqt4-dev if you using Debian based system.
This depends on the distro you are using. If there are binary packages for your distro you can update through your package manager. Otherwise you have to download the source of your prefered Qt version and build it yourself.
I'm not sure if this will help in your situation, but you can download the Qt Online Installer at the following link:
https://www.qt.io/download-qt-installer