Error: "Could not load file or assembly 'stdole' or one of its dependencies. The system cannot find the file specified." when publishing Workflow project

Products

• Client Management Suite
• IT Management Suite

Issue/Introduction

Getting the error below when trying to republish an existing Workflow project:

Failure, Reason: Could not load file or assembly 'stdole, Version=7.0.3300.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified.

Custom integrations have been recompiled that are included in this project and the same error is returned.  Is there anyway to track it down the root cause of this issue without replacing each component?

Environment

ITMS 8.x

Resolution

Found two custom libraries being used, serial number excel.dll and serial number excel.lib. The excel.lib was deleted and the error went away.