sandbox-mount-conflict: Sandbox mount state conflict

Cause

mount() was called on a sandbox controller that is not in a mountable state:

• The previous mount() has not finished.
• unmount() is still running.
• The sandbox is already mounted and has not been unmounted.

A sandbox can be mounted into only one container at a time. This error usually appears when createSandbox is used on its own and mount() is called concurrently, or called again without unmounting first.

Troubleshooting

1. Use the error message to identify the conflicting state: is already mounting, is currently unmounting, or is already mounted.
2. Check that each call waits for the promise returned by the previous mount() or unmount() before starting the next operation.
3. Check whether several pieces of code share one controller and each call mount().

Solution

Call mount, unmount, and mount again in sequence, and wait for each promise to settle. To run in several containers at the same time, create a separate sandbox for each container.

Related

• Error codes and solutions
• sandbox-mount-conflict：沙箱挂载状态冲突