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Did you know that Docker Desktop now offers support for developers subscribed to a Pro or a Team plan? Click here to learn more.

This page contains information on how to diagnose and troubleshoot Docker Desktop issues, request Docker Desktop support (Pro and Team plan users only), send logs and communicate with the Docker Desktop team, use our forums and Success Center, browse and log issues on GitHub, and find workarounds for known problems.

Troubleshoot

Choose > Troubleshootfrom the menu bar to see the troubleshoot options.

The Troubleshoot page contains the following options:

• Restart Docker Desktop: Select to restart Docker Desktop.

• Support: Developers on Pro and Team plans can use this option to send a support request. Other users can use this option to diagnose any issues in Docker Desktop. For more information, see Diagnose and feedback and Support.

• Reset Kubernetes cluster: Select this option to delete all stacks and Kubernetes resources. For more information, see Kubernetes.

• Clean / Purge data: This option resets all Docker data without areset to factory defaults. Selecting this option results in the loss of existing settings.

• Reset to factory defaults: Choose this option to reset all options onDocker Desktop to their initial state, the same as when Docker Desktop was first installed.

• Uninstall: Choose this option to remove Docker Desktop from yoursystem.

Uninstall Docker Desktop from the command line

To uninstall Docker Desktop from a terminal, run: --uninstall. If your instance is installed in the default location, thiscommand provides a clean uninstall:

You might want to use the command-line uninstall if, for example, you find thatthe app is non-functional, and you cannot uninstall it from the menu.

Diagnose and feedback

In-app diagnostics

If you encounter problems for which you do not find solutions in thisdocumentation, on Docker Desktop issues onGitHub, or the Docker Desktop forum, we can help you troubleshootthe log data. Before reporting an issue, we recommend that you read the information provided on this page to fix some common known issues.

Note

Docker Desktop offers support for users subscribed to a Pro or a Team plan. If you are experiencing any issues with Docker Desktop, follow the instructions in this section to send a support request to Docker Support.

Before you get started, we recommend that you sign into your Docker Desktop application and your Docker Hub account.

1. Choose > Troubleshoot.
2. Sign into Docker Desktop. In addition, ensure you are signed into your Docker account.
3. Click Get support. This opens the in-app Support page and starts collecting the diagnostics.
4. When the diagnostics collection process is complete, click Upload to get a Diagnostic ID.
5. When the diagnostics have been uploaded, Docker Desktop prints a diagnostic ID. Copy this ID.
6. If you have subscribed to a Pro or a Team plan, click Contact Support. This opens the Docker Desktop support form. Fill in the information required and add the ID you copied earlier to the Diagnostics ID field. Click Submit to request Docker Desktop support.

   Note

   You must be signed in to Docker Desktop using your Pro or Team plan credentials to access the support form. For information on what's covered as part of Docker Desktop support, see Support.

7. If you are not subscribed to a Pro or a team plan, you can click Upgrade to benefit from Docker Support to upgrade your existing account. Alternatively, click Report a Bug to open a new Docker Desktop issue on GitHub. This opens Docker Desktop for Mac on GitHub in your web browser in a ‘New issue' template. Complete the information required and ensure you add the diagnostic ID you copied earlier. Click submit new issue to create a new issue.

Diagnosing from the terminal

In some cases, it is useful to run the diagnostics yourself, for instance, ifDocker Desktop cannot start.

First, locate the com.docker.diagnose tool. If you have installed Docker Desktop in the Applications directory, then it is located at/Applications/Docker.app/Contents/MacOS/com.docker.diagnose.

To create and upload diagnostics, run:

After the diagnostics have finished, you should have the following output,containing your diagnostics ID:

The diagnostics ID (here BE9AFAAF-F68B-41D0-9D12-84760E6B8740/20190905152051) iscomposed of your user ID (BE9AFAAF-F68B-41D0-9D12-84760E6B8740) and a timestamp(20190905152051). Ensure you provide the full diagnostics ID, and not just the user ID.

To view the contents of the diagnostic file, run:

Check the logs

In addition to using the diagnose and feedback option to submit logs, you canbrowse the logs yourself.

In a terminal

To watch the live flow of Docker Desktop logs in the command line, run the following script from your favorite shell.

Alternatively, to collect the last day of logs (1d) in a file, run:

In the Console app

Macs provide a built-in log viewer, named 'Console', which you can use to checkDocker logs.

The Console lives in /Applications/Utilities; you can search for it withSpotlight Search.

To read the Docker app log messages, type docker in the Console window search bar and press Enter. Then select ANY to expand the drop-down list next to your docker search entry, and select Process.

You can use the Console Log Query to search logs, filter the results in variousways, and create reports.

Troubleshooting

Make sure certificates are set up correctly

Docker Desktop ignores certificates listed under insecure registries, and doesnot send client certificates to them. Commands like docker run that attempt topull from the registry produces error messages on the command line, for example:

As well as on the registry. For example:

For more about using client and server side certificates, seeAdding TLS certificates in the Getting Started topic.

Volume mounting requires file sharing for any project directories outside of /Users

If you are using mounted volumes and get runtime errors indicating anapplication file is not found, access to a volume mount is denied, or a servicecannot start, such as when using Docker Compose,you might need to enable file sharing.

Volume mounting requires shared drives for projects that live outside of the/Users directory. Go to >Preferences > Resources > File sharing and share the drive that contains the Dockerfile and volume.

Incompatible CPU detected

Docker Desktop requires a processor (CPU) that supports virtualization and, morespecifically, the Apple Hypervisorframework.Docker Desktop is only compatible with Mac systems that have a CPU that supports the Hypervisor framework. Most Macs built in 2010 and later support it,as described in the Apple Hypervisor Framework documentation about supported hardware:

Generally, machines with an Intel VT-x feature set that includes Extended PageTables (EPT) and Unrestricted Mode are supported.

To check if your Mac supports the Hypervisor framework, run the following command in a terminal window.

If your Mac supports the Hypervisor Framework, the command printskern.hv_support: 1.

If not, the command prints kern.hv_support: 0.

See also, Hypervisor FrameworkReferencein the Apple documentation, and Docker Desktop Mac system requirements.

Workarounds for common problems

• If Docker Desktop fails to install or start properly on Mac:

  • Make sure you quit Docker Desktop before installing a new version of theapplication ( > Quit Docker Desktop). Otherwise, you get an 'application in use' error when you try tocopy the new app from the .dmg to /Applications.

  • Restart your Mac to stop / discard any vestige of the daemon running fromthe previously installed version.

  • Run the uninstall commands from the menu.

• If docker commands aren't working properly or as expected, you may need tounset some environment variables, to make sure you are not using the legacyDocker Machine environment in your shell or command window. Unset theDOCKER_HOST environment variable and related variables. If you use bash, use the following command: unset ${!DOCKER_*}

• For the hello-world-nginx example, Docker Desktop must be running to get tothe web server on http://localhost/. Make sure that the Docker icon isdisplayed on the menu bar, and that you run the Docker commands in a shell that is connected to the Docker Desktop Engine.Otherwise, you might start the webserver container but get a 'web page notavailable' error when you go to localhost.

• If you see errors like Bind for 0.0.0.0:8080 failed: port is alreadyallocated or listen tcp:0.0.0.0:8080: bind: address is already in use:

  • These errors are often caused by some other software on the Mac using thoseports.

  • Run lsof -i tcp:8080 to discover the name and pid of the other process anddecide whether to shut the other process down, or to use a different port inyour docker app.

Known issues

• The following issues are seen when using the virtualization.framework experimental feature:

  • Some VPN clients can prevent the VM running Docker from communicating with the host, preventing Docker Desktop starting correctly. See docker/for-mac#5208.

    This is an interaction between vmnet.framework (as used by virtualization.framework in Big Sur) and the VPN clients.

  • Docker Desktop is incompatible with macOS Internet Sharing. See docker/for-mac#5348.

    This is an interaction between vmnet.framework (as used by virtualization.framework in Big Sur) and macOS Internet Sharing. At the moment it is not possible to use Docker Desktop and macOS Internet Sharing at the same time.

  • Some container disk I/O is much slower than expected. See docker/for-mac#5389. Disk flushes are particularly slow due to the need to guarantee data is written to stable storage on the host.

    This is an artifact of the new virtualization.framework in Big Sur.

  • TCP and UDP port 53 (DNS) are bound on the host when Docker Desktop starts. Therefore you cannot bind to port 53 on all interfaces with a command like docker run -p 53:53. See docker/for-mac#5335.

    This is an artifact of the new virtualization.framework in Big Sur. A workaround is to bind to a specific IP address e.g. docker run -p 127.0.0.1:53:53.

  • The Linux Kernel may occasionally crash. Docker now detects this problem and pops up an error dialog offering the user the ability to quickly restart Linux.

    We are still gathering data and testing alternate kernel versions.

• IPv6 is not (yet) supported on Docker Desktop.

• You might encounter errors when using docker-compose up with Docker Desktop(ValueError: Extra Data). We've identified this is likely related to dataand/or events being passed all at once rather than one by one, so sometimesthe data comes back as 2+ objects concatenated and causes an error.

• Force-ejecting the .dmg after running Docker.app from it can cause thewhale icon to become unresponsive, Docker tasks to show as not responding inthe Activity Monitor, and for some processes to consume a large amount of CPUresources. Reboot and restart Docker to resolve these issues.

• Docker does not auto-start on login even when it is enabled in > Preferences. This is related to aset of issues with Docker helper, registration, and versioning.

• Docker Desktop uses the HyperKit hypervisor(https://github.com/docker/hyperkit) in macOS 10.10 Yosemite and higher. Ifyou are developing with tools that have conflicts with HyperKit, such asIntel Hardware Accelerated Execution Manager(HAXM),the current workaround is not to run them at the same time. You can pauseHyperKit by quitting Docker Desktop temporarily while you work with HAXM.This allows you to continue work with the other tools and prevent HyperKitfrom interfering.

• If you are working with applications like ApacheMaven that expect settings for DOCKER_HOST andDOCKER_CERT_PATH environment variables, specify these to connect to Dockerinstances through Unix sockets. For example:

• There are a number of issues with the performance of directories bind-mountedinto containers. In particular, writes of small blocks, and traversals of largedirectories are currently slow. Additionally, containers that perform largenumbers of directory operations, such as repeated scans of large directorytrees, may suffer from poor performance. Applications that behave in this wayinclude:

  • rake
  • ember build
  • Symfony
  • Magento
  • Zend Framework
  • PHP applications that use Composer to installdependencies in a vendor folder
    

  As a workaround for this behavior, you can put vendor or third-party librarydirectories in Docker volumes, perform temporary file system operationsoutside of bind mounts, and use third-party tools like Unison or rsync tosynchronize between container directories and bind-mounted directories. We areactively working on performance improvements using a number of differenttechniques. To learn more, see the topic on our roadmap.

Support

Docker Desktop offers support for developers subscribed to a Pro or a Team plan. Click here to upgrade your existing account.

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This section contains instructions on how to get support, and covers the scope of Docker Desktop support.

How do I get Docker Desktop support?

If you have subscribed to a Pro and Team account, please raise a ticket through Docker Desktop support.

Docker Community users can get support through our Github repos for-win and for-mac, where we respond on a best-effort basis.

What support can I get?

If you are a Pro or a Team user, you can request for support on the following types of issues:

• Desktop upgrade issues
• Desktop installation issues
  • Installation crashes
  • Failure to launch Docker Desktop on first run
• Usage issues
  • Crash closing software
  • Docker Desktop not behaving as expected
• Configuration issues
• Basic product ‘how to' questions

What is not supported?

Docker Desktop excludes support for the following types of issues:

• Use on or in conjunction with hardware or software other than that specified in the applicable documentation
• Running on unsupported operating systems, including beta/preview versions of operating systems
• Running containers of a different architecture using emulation
• Support for the Docker engine, Docker CLI, or other bundled Linux components
• Support for Kubernetes
• Features labeled as experimental
• System/Server administration activities
• Supporting Desktop as a production runtime
• Scale deployment/multi-machine installation of Desktop
• Routine product maintenance (data backup, cleaning disk space and configuring log rotation)
• Third-party applications not provided by Docker
• Altered or modified Docker software
• Defects in the Docker software due to hardware malfunction, abuse, or improper use
• Any version of the Docker software other than the latest version
• Reimbursing and expenses spent for third-party services not provided by Docker
• Docker Support excludes training, customization, and integration

What versions are supported?

We currently only offer support for the latest version of Docker Desktop. If you are running an older version, you may be asked to upgrade before we investigate your support request.

How many machines can I get support for Docker Desktop on?

As a Pro user you can get support for Docker Desktop on a single machine.As a Team, you can get support for Docker Desktop for the number of machines equal to the number of seats as part of your plan.

What OS's are supported?

Docker Desktop is available for Mac and Windows. The supported version information can be found on the following pages:

Can I run Docker Desktop on Virtualized hardware?

No, currently this is unsupported and against the terms of use.

Your device isn't recognized by your Mac

Follow these steps if your mouse, keyboard, or trackpad isn't recognized by your Mac.

Make sure that your wireless mouse, keyboard, or trackpad is turned on

The Magic Mouse and Magic Mouse 2 have a slide switch on the bottom of the device. Slide the switch to turn on the device. On the Magic Mouse, the green LED briefly lights up. On the Magic Mouse 2, green coloring is visible beneath the switch.

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The Magic Keyboard, Magic Keyboard with Numeric Keypad, and Magic Trackpad 2 have a slide switch on the back edge of the device. Slide the switch to turn on the device (green coloring becomes visible). Earlier Apple Wireless Keyboard models have a power button on the right side of the device. Press the button and you see a green LED on the top of the device, near the button.

When you turn these devices on, they appear as connected in Bluetooth preferences and in the Bluetooth menu in your menu bar. If a device doesn't appear there, make sure it's charged or replace it batteries, and make sure it's been paired with your Mac.

Make sure that your device has been set up to work with your Mac

Learn how to pair your Magic Mouse 2, Magic Keyboard, Magic Keyboard with Numeric Keypad, Magic Trackpad 2 and earlier models of Apple wireless devices with your Mac.

Make sure that Bluetooth is turned on

Use your Mac notebook's built-in trackpad or a USB mouse to choose Apple menu  > System Preferences, then click Bluetooth. Make sure that Bluetooth is turned on.

Refer to the table below for more information on determining the Bluetooth status. If the Bluetooth icon doesn't appear, or if the menu bar status continues to indicate that Bluetooth is off, restart your computer and then try to turn Bluetooth on again.

Make sure that your devices are charged

Magic Mouse 2, Magic Keyboard, Magic Keyboard with Numeric Keypad, and Magic Trackpad 2 have built-in rechargeable batteries. You can charge these devices by connecting them to a Mac or a USB power adapter using a Lightning to USB Cable. For the fastest battery charging performance, be sure your device is switched on when connected to the Lightning to USB Cable.

To check the battery level of these devices, click the Bluetooth icon in your Mac's menu bar, then select your device by name. If the battery level of any device is low, recharge the device. If the device isn't showing, make sure the device is turned using the steps outlined above.

Turn the device off and on

If your Apple wireless mouse, keyboard, or trackpad isn't recognized by your Mac after following the tips above, try turning the wireless device off, waiting a few seconds, and then turning it back on.

Your mouse or keyboard intermittently stops responding

• Click the mouse or trackpad or press a key on the keyboard to reconnect the device to the computer. It might take a moment for the device to respond.
• Check for wireless interference.

Your mouse doesn't scroll up or down or side to side

If you can't use your mouse to scroll through a web page or document, make sure that you're using the correct Multi-Touch gestures and have set up your scrolling speed preferences correctly.

Your mouse or trackpad doesn't track as expected

Apple Wireless Mouse, Magic Mouse, and Magic Mouse 2 can be used on most smooth surfaces. If tracking issues occur, try these options:

• Choose Apple menu  > System Preferences, then click Mouse. Set the 'Tracking speed' slider to adjust how fast the pointer moves as you move the mouse.
• Try using a different surface to see if tracking improves.
• Turn the mouse over and inspect the sensor window. Use compressed air to gently clean the sensor window if dust or debris is present.
• If multiple Bluetooth wireless devices are in use nearby, try turning them off one at a time to see if the issue improves.

Learn more what to do if your trackpad isn't tracking correctly.

Your keyboard has one or more keys that don't respond

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Use the Keyboard Viewer to test whether the keyboard keys are responding correctly when they are pressed.

1. Choose Apple menu  > System Preferences, then click Keyboard.
2. Click the Input Sources tab.
3. Make sure that the keyboard language that you use is listed on the left side. If it's not, click the add button (+) and choose from the languages that appear.
4. Select the 'Show Input menu in menu bar' checkbox.
5. Click the Keyboard tab, then select 'Show keyboard and emoji viewers in menu bar' checkbox, if present.
6. From the Input menu in the menu bar, choose Show Keyboard Viewer. The Keyboard Viewer showing the keyboard layout appears on your display.
7. Type the key on the keyboard that doesn't respond and see if the corresponding key highlights on the Keyboard Viewer. If it does, that key is functioning correctly.

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If you enable the Mouse Keys feature, many keys might not respond as you expect. To turn off Mouse keys, choose Apple menu > System Preferences, then click Accessibility. Choose Mouse & Trackpad from the list on the left side, then then deselect the Enable Mouse Keys checkbox.