Fixing OSError: Can't Create File while running Agisoft Ortho Mapping

📌 Problem

If you're encountering the following error in the log while running Agisoft Ortho Mapping :

OSError: Can't create file: The system cannot find the path specified

This guide will help you troubleshoot and resolve the issue.

🔍 Root Cause

This error typically occurs when Metashape attempts to write to a file path that:

• Does not exist
• Exceeds Windows' maximum path length (260 characters)
• Is inaccessible due to permissions or drive availability

✅ Probable Resolutions

1. Verify the Path Exists

Ensure that the full directory path exists. For example, if the script is trying to write to:

D:/Flight Data - My Client Project/Cycle_250724_151635_123SN021/.../point_cloud.zip.tmp

Make sure all folders in that path are present and correctly named.

2. Shorten the Path

Windows has a default path length limit of 260 characters. If your path is too long, try moving your project to a higher-level directory like:

D:/Projects/

Then, Re-Path Project to update the paths before trying to execute the Agisoft Ortho Mapping again.

3. Check Permissions and Drive Access

Ensure the drive (e.g., D:) is mounted and accessible, and that the user running the script has write permissions to the target directory.

4. Avoid Special Characters and Spaces

Rename folders to remove spaces or special characters. For example:

Flight Data - My Client Site → Flight_Data_My_Client_Site

📬 Need Help?

If you're still stuck, please Contact Support for assistance with Metashape processing workflows.