I can't use emulator and install HXAM - android-studio

what can i do in these problems?enter image description here
enter image description here

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I'm having trouble running Flutter on Linux

[enter image description here] (https://i.stack.imgur.com/n9Kej.png)
Ubuntu, the problem of running the application in Flutter.
This problem is in Ubuntu.
Make sure you install android studio and set environment variables correctly.

Running docker on a virtual machine with Ubuntu, when I open docker it says "Docker has stopped" and the icon flashes?

When I searched Google for why this might happen on a VM I found this Stackoverflow post: Docker is running. Docker Desktop says "Docker Desktop stopped..."
and so I followed the steps in this link: https://www.cyberithub.com/how-to-enable-nested-vt-x-amd-v-in-virtualbox-step-by-step/
After I did all that I re-opened my VM and now when I go to start Docker it shows the Docker icon loading, the window pops up and immediately closes.
How can I troubleshoot this issue further to resolve?
Thanks
Googled and found stackoverflow post: Docker is running. Docker Desktop says "Docker Desktop stopped..."
And found this website to enable nested visualization: https://www.cyberithub.com/how-to-enable-nested-vt-x-amd-v-in-virtualbox-step-by-step/
Followed this link to install Docker on linux: https://docs.docker.com/desktop/install/ubuntu/

Why does the docker container exits immediately? on PLC

I am running docker on a WAGO-PFC 8204 device and successfully able to install an image for node-red flow based editor. However, when i am trying to run the image, it creates a container but automatically exits. I am not running this image on a linux machine itself but instead of other device. I ran docker logs [container name] but output was Error: fatal error, line 0. Please see the image attached.
Please help anyone if you can. Thanks
This is because version 3.0.0 of the Node-RED Docker container will not run on old versions of Docker that do not support 64bit time on a 32bit OS.
You can try adding --security-opt=seccomp=unconfined to the docker run command or upgrade docker/libseccom to a supported version of the latest apline base container.
Details of the minimum version are in the release notes on github
https://wiki.alpinelinux.org/wiki/Release_Notes_for_Alpine_3.13.0#time64_requirements
https://github.com/node-red/node-red-docker/issues/319
Work around:
Use the nodered/node-red:2.2.2 container rather than the new 3.0.0 (latest) tags

TurtleSim Display Linux on Windows 10

Currently following this tutorial enter link description here
I have Ubuntu installed on my windows machine, using the Ubuntu terminal. When I run the following command
rosrun turtlesim turtlesim_node
I get this error in the terminal
enter image description here
I have install Xming as found in some other places, and this is running in the background, but still the error persists. Anyone run into this?
I am using ROS melodic.
You can use x410 for the GUI of WSL Website Link
I have tried to use Ubuntu 18.04 WSL and ROS Melodic with Turtlebot and Rviz GUI running well.

Should we install a docker image from Docker Hub at the begining?

I want to introduce docker for my development environment.
I wanted to create a docker image from a existing linux machine.
But,I could not find a official method on docker documentation.
https://docs.docker.com/learn/
(I know there are some ways on the Internet to create a docker image like converting .iso file to .tar.gz file.
However,it's not official)
After that,I installed a docker image of Debian OS from Docker Hub with 'docker pull' command.
However,I could not find a correct version of Debian OS I wanted.
So, to get a OS of a correct kernel verion and a correct Debian os version,
after I install a docker image from Docker Hub, should I customize it?
Is there any way as an official manner to create a docker image from a exisiting linux machine?
Sounds like you should be looking at Hashicorp's packer, it would allow you to build your own Docker base images, from whatever base you wish.
https://www.packer.io/docs/builders/docker.html

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