What to check
A type-initializer exception wraps an error that happened while a component was being initialized. The outer message alone is rarely enough. In SAP Business One integrations, inspect dependency and installation details on the host where the process actually runs.
Troubleshooting steps
- Capture the full exception chain and identify the earliest missing component, access error, or version conflict.
- Confirm the required DI API is installed with the architecture supported by the application and the SAP release.
- Repair dependencies using the approved installers and retest from a fresh process under the intended account.
Confirm the result
Confirm initialization and then a company connection. Do not register DLLs using copied commands for an obsolete SAP version or a different Windows architecture.