D-Lab cannot start and show the error “Database required! Try to reconnect?”

This error message can appear if D-Lab has not been closed properly. Please do the following:

1. Open the task-manager and end the process “mongod”

2. Go to C:\data\db (default) and cut (NOT delete) all folders and the 5 files called:

– AppData.ns

– AppData.0

– Local.ns

– Local.0

– mongod.lock

……and save them on your desktop.

3. Open D-Lab

4. You can delete the cut files if D-Lab starts properly now.

These steps will delete some settings, the layout and the configuration of a incomming Data Stream, but none of the recorded data.

Please make sure that you don’t delete any other files in the C:\data\db that has the names of your D-Lab studies. Otherwise we cannot restore this data.

In case this does not solve the issue, please contact the Ergoneers Support (support@ergoneers.com).