This error message can have several reasons and indicates that your project file has been damaged.
The following reasons may be possible:
- The project file was opened from a temporary folder. E.g. directly from an email attachment.
- The project file was opened from a cloud storage (OneDrive, iCloud or similar).
- The project file was not converted correctly from a previous MAXQDA version.
- As MAXQDA is a database program, all changes are always saved directly. For this reason, it is very important that the computer’s connection to the project file is not interrupted, otherwise there may be problems with the project file in exceptional cases. We therefore recommend that you do not open the project file from a USB stick, network drive or cloud-synchronized folder, but always copy it to a local hard drive first (e.g. to the desktop).
If you have opened the project file from a non-local location, the project file may be corrupted. In this case, it would be best to set up a new database structure for your project to rule out any problems. This is very simple:
- Create a new project file and save it on your local hard disk (e.g. on the desktop)
- Open it, go to the “Start” tab and select “Merge projects” on the far right
- Merge the new project file with the problematic project file
- This will create a new .mx24 project file with a new database structure, but which contains the existing data in full.
If the error still occurs, it would be good if you could search for backups of your file. To do this, please search your entire computer for files with the extension .mx24 so that all MAXQDA 24 project files can be found. Do you possibly have a backup that still contains your data?
First, save the backup locally on your device before you open your MAXQDA again.
If you no longer have a working project file, please contact our functional support and we will help you as quickly as possible.
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