troubleshooting topic add new error

Author: ghogen

docs/containers/troubleshooting-docker-errors.md

@@ -51,6 +51,30 @@ which will refresh the network-related components on your host machine.
 
 When using Docker for macOS, you might encounter an error referencing the folder /usr/local/share/dotnet/sdk/NuGetFallbackFolder. Add the folder to the File Sharing tab in Docker
 
+## Docker users group
+
+You might encounter the following error in Visual Studio when working with containers:
+
+```
+The current user must be in the 'docker-users' group to use Docker Desktop. Add yourself to the 'docker-users' group and then log out of Windows.
+```
+
+You must be a member of the 'docker-users' group in order to have permissions to work with Docker containers.  To add yourself to the group in Windows 10, follow these steps:
+
+1. From the Start menu, open **Computer Management**.
+1. Expand **Local Users and Groups**, and choose **Groups**.
+1. Find the **docker-users** group, right-click and choose **Add to group**.
+1. Add your user account(s).
+1. Log out and log back in again for these changes to take effect.
+
+You can also use the `net localgroup` command at the Administrator command prompt to add users to specific groups.
+
+```cmd
+net localgroup docker-users DOMAIN/username /add
+```
+
+Or to use a PowerShell command, see [Add-LocalGroupMember](/powershell/module/microsoft.powershell.localaccounts/add-localgroupmember).
+
 ## Microsoft/DockerTools GitHub repo
 
 For any other issues you encounter, see  [Microsoft/DockerTools](https://github.com/microsoft/dockertools/issues) issues.