Tecdoc Loading - Data Failed Check The Configuration File [upd]
TecDoc: "Loading data failed – check the configuration file" – How to Fix It
If you see the error "Loading data failed. Check the configuration file" when starting TecDoc, it typically means the application cannot read or access its configuration settings properly. Follow these steps to resolve the issue.
6. Check Event Viewer for Clues
Open eventvwr.msc → Windows Logs → Application. Look for .NET Runtime or TecDoc errors mentioning file access violations or serialization failures. tecdoc loading data failed check the configuration file
Quick Tip: Use Windows Search for *.conf or *.ini inside the TecDoc installation folder (typically C:\TECDOC or C:\Program Files\TecDoc). TecDoc: "Loading data failed – check the configuration
Common Causes
| Cause | Description |
|-------|-------------|
| Corrupted configuration file | Improper shutdown, disk errors, or incomplete updates can damage the XML/INI structure. |
| Wrong file path | After moving the installation folder or restoring a backup, paths in config files may no longer be valid. |
| Missing data directory | The linked local database folder (TecDocData/) is deleted, renamed, or inaccessible. |
| Network drive disconnection | If the data is hosted on a network share (common for multi‑workstation setups), a lost mapping or permission change triggers this error. |
| Version mismatch | After a TecDoc update, the config file still references an old database schema version. |
| Antivirus / UAC blocking | Security software may quarantine or block write access to the config file. |
| Corrupted registry keys | Some TecDoc versions store configuration paths in Windows registry (e.g., HKEY_LOCAL_MACHINE\SOFTWARE\TecAlliance). | Quick Tip: Use Windows Search for *
: General processing failure, often due to a timeout or missing data in the request.
Example concise reply to include in bug reports
"tecdoc loading data failed: check the configuration file" — see attached sanitized config, application log (stack trace), TecDoc dataset version X.Y.Z, client version A.B.C, OS Ubuntu 22.04, DB PostgreSQL 14. Connection test to DB succeeded/failed (state). Permission check: config readable by service user.
Troubleshooting Steps
To resolve the "Tecdoc loading data failed: check the configuration file" error, follow these steps: