"Loading data failed, check the configuration file"

The error in a patched TecDoc installation typically indicates that the application cannot find or access its database because of incorrect path settings or missing initialization files . This is common after applying a "patch" or moving the software to a new directory. Common Causes & Fixes

This error typically occurs because the software cannot locate the correct database path or security keys within the configuration files after a patch has been applied. 🛠️ Step 1: Verify Directory Paths

The error "Loading data failed, check the configuration file" in patched versions of TecDoc

  1. Keep a clean backup of the working configuration file and the entire Data folder after a successful load.
  2. Never edit the config file with WordPad or Microsoft Word. Use Notepad++ or VS Code.
  3. Apply patches in the correct order – if the patch requires a specific base version (e.g., TecDoc 2023.2), do not install it on 2024.1.
  4. Monitor disk space – the error can also appear if the drive containing the data is full, preventing temporary index writes.
  5. Use a dedicated folder – avoid desktop, Downloads, or OneDrive folders, which have special file attributes.