When I try to creat FMU, "docker container failed to start" error happened

Hello, all:

I try to create a FMU for Linux in windows system. but after I have met one error when I try to build. see following:

Failed to set up the docker environment for cross-platform compilation because the container could not be retrieved. If the computer does not have internet access, check documentation for manually downloading the docker container.

docker container failed to start

a few weeks ago, I alread successed creat a FMU for Linux in windows system. but I don't know why this time when I try to build FMU again, one error happened?

can you help me to solve it?

thank you.

[Umar]

Hi Wen,

To address your problem, please refer to https://stackoverflow.com/questions/20430371/my-docker-container-has-no-internet Hope this is the answer you are looking for.

[Halvor Platou]

I'm seeing the same problem. Logging in to the "simulink-fmu-builder-wsl-distro", I'm able to pull standard images without problems(eg: "docker pull alpine").

What image is supposed to pulled when calling 'exportToFMU' with 'GenerateLinuxBinaryWithWSL'?

Full output from command:

exportToFMU('testModel', 'FMUType', 'CS', 'FMIVersion', '2.0', 'GenerateLinuxBinaryWithWSL', 'on')

Warning: Failed to set up the docker environment for cross-platform compilation because the container could not be retrieved. If the

computer does not have internet access, check documentation for manually downloading the docker container.

> In sldiagviewer.reportWarning

In internal/WSLDockerService/startContainerIfNotRunning

In exportToFMU_fcn

In exportToFMU

docker container failed to start

[Halvor Platou]

-----------------------------------------------------------------------------------------------------

MATLAB Version: 24.2.0.2637905 (R2024b) Prerelease Update 1

MATLAB License Number: Prerelease

Operating System: Microsoft Windows 11 Business Version 10.0 (Build 22631)

Java Version: Java 1.8.0_202-b08 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode

-----------------------------------------------------------------------------------------------------

MATLAB Version 24.2 (R2024b)

Simulink Version 24.2 (R2024b)

MATLAB Compiler Version 24.2 (R2024b)

Simulink Compiler Version 24.2 (R2024b)

WSL version: 2.2.4.0

Kernel version: 5.15.153.1-2

WSLg version: 1.0.61

MSRDC version: 1.2.5326

Direct3D version: 1.611.1-81528511

DXCore version: 10.0.26091.1-240325-1447.ge-release

Windows version: 10.0.22631.3880

[Umar]

Hi Halvor,

Please see my response to comments below.

What image is supposed to pulled when calling 'exportToFMU' with 'GenerateLinuxBinaryWithWSL'?

A Linux-based image is pulled.

Full output from command: exportToFMU('testModel', 'FMUType', 'CS', 'FMIVersion', '2.0', 'GenerateLinuxBinaryWithWSL', 'on') Warning: Failed to set up the docker environment for cross-platform compilation because the container could not be retrieved. If the computer does not have internet access, check documentation for manually downloading the docker container. > In sldiagviewer.reportWarning In internal/WSLDockerService/startContainerIfNotRunning In exportToFMU_fcn In exportToFMU docker container failed to start

Have you tried manually downloading the Docker container and check documentation for manually downloading the docker container, it clearly mentions it in the warning message. Also, it would not be a bad idea to check the settings on your firewall or proxy, it will be making sure that MATLAB has the necessary permissions to access the internet.

[wen li]

Hello, Umar: I already download the docker, and install it. but still have this issue.

docker version info：

[Umar]

Hi Wen,

Are you @Halvor? Also, what issues are you experiencing, provide text details.

[wen li]

Hello，Umar：

this is the error info :

Failed to set up the docker environment for cross-platform compilation because the container could not be retrieved. If the computer does not have internet access, check documentation for manually downloading the docker container.

docker container failed to start

and when I try to pull linux-based image, it told me no access.

C:\Users\bjkjd>docker pull linux-based

Using default tag: latest

Error response from daemon: pull access denied for linux-based, repository does not exist or may require 'docker login': denied: requested access to the resource is denied

do you know why?

[Umar]

Hi Wen,

Please see my response to your comments below.

Yours first query mentioned, “Failed to set up the docker environment for cross-platform compilation because the container could not be retrieved. If the computer does not have internet access, check documentation for manually downloading the docker container.docker container failed to start”

Utilize Matlab to check internet connectivity by attempting to access a reliable external server. One common approach is to ping a well-known server, such as Google's DNS server (8.8.8.8), to verify connectivity.

% Check internet connectivity by pinging Google's DNS server

[status, result] = system('ping -c 4 8.8.8.8');

if status == 0 disp('Internet connection is active. Docker can access the internet.'); else disp('No internet connection. Docker may have trouble downloading images.'); end

In the code snippet above, I use the system function to execute a ping command to Google's DNS server. The -c 4 flag specifies sending 4 packets for the ping test. If the status variable is 0, it indicates a successful ping, confirming internet connectivity.Save the Matlab script with the internet connectivity check code snippet to a file, for example, check_connectivity.m. Run the script within your Docker environment to verify internet access.Ensure that your Docker environment has internet access configured correctly. Docker containers typically inherit the host machine's network settings. If your host machine can access the internet, Docker containers should also have connectivity by default.

Addressing your second query,” when I try to pull linux-based image, it told me no access.C:\Users\bjkjd>docker pull linux-based Using default tag: latestError response from daemon: pull access denied for linux-based, repository does not exist or may require 'docker login': denied: requested access to the resource is denied”

Log in to Docker using the docker login command. This command prompts you to enter your Docker Hub credentials (username and password). Once you are logged in, you should have the necessary access to pull the image.If the repository exists and you have the necessary permissions but are still facing issues, try specifying the repository tag explicitly. This can help Docker identify the specific image you want to pull.

docker pull repository_name:<tag>

Note: Replace repository_name with the actual name of the Linux-based repository and tag with the specific tag you want to pull (e.g., latest).

Restarting the Docker service or checking network configurations can sometimes resolve connectivity problems.