Lotus Notes to Microsoft 365 Migration Errors
Common Lotus Notes migration errors and how to resolve them.
Last updated: 2025-01-15 Troubleshooting
Error 1: Runtime InteropServices
Error Message
System.Type System.Runtime.InteropServices.Marshal.GetTypeFromCLSID(System.Guid)
Cause
The migration server lacks the .NET Framework software required for the Cloudiway Agent to operate properly. The InteropServices component cannot function without the proper framework version.
Solution
- 1. Download the latest .NET Framework from Microsoft's download center
- 2. Install .NET Framework on the migration server
- 3. Restart the Cloudiway Agent service
- 4. Restart the migration process
Error 2: Mail File Not Found
Error Message
user mailFile Not found
Cause
The migration platform cannot locate the NSF file associated with the user being migrated. This typically occurs when the username is misspelled or the user doesn't exist in the source domain.
Solution
- 1. Verify the user exists in your Lotus Notes/Domino domain
- 2. Check the username spelling in the migration platform
- 3. Confirm the user's NSF mail file exists on the Domino server
- 4. After corrections, restart the migration
Lotus Notes Migration Flow
📁
NSF Files
Lotus Notes
→
🔄
Agent
Conversion
→
☁️
Office 365
Target
General Troubleshooting
Pre-Migration Checklist
- • Ensure .NET Framework 4.8 or later is installed
- • Verify Cloudiway Agent is running on the Domino server
- • Confirm all user NSF files are accessible
- • Check Lotus Notes connector configuration
- • Validate user list spelling and formatting
Agent Installation
The Cloudiway Agent must be installed on a server with access to
the Lotus Notes/Domino environment. Refer to the Lotus Notes Connector
Configuration guide for detailed setup instructions.