| Error Message | Likely Cause | Solution | |---------------|----------------|-----------| | "Schema version not supported" | EDZ created with EPLAN 2015 or older | Request an updated EDZ from manufacturer, or open in an older EPLAN version and re-export. | | "Missing 3D body" | STEP file missing or incorrectly referenced | Check the EDZ with 7-Zip; look for a .step file inside the 3D folder. | | "Part number already exists" | Duplicate manufacturer article number | Use Update instead of New parts only , or manually delete the conflicting part. | | "Invalid character in path" | Non-ASCII letters in file path (e.g., umlauts) | Move the EDZ to C:\Temp with a simple ASCII name. |