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Troubleshooting
Problem
User launches Controller. User clicks on a menu item (for example 'X' = Controller Link) which launches Excel-related functionality.
An error appears.
Symptom
The error will vary slightly (depending on what functionality is chosen) but it will look similar to:
Unable to cast COM object of type
<....>
This operation failed because the QueryInterface call on the COM component for the interface with IID '{....}' failed due to the following error: ... Exception from HRESULT: 0x80029C4A (TYPE_E_CANTLOADLIBRARY)
[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SS9S6B","label":"IBM Cognos Controller"},"Component":"Controller","Platform":[{"code":"PF033","label":"Windows"}],"Version":"10.2.1, 10.3.0, 10.3.1","Edition":"","Line of Business":{"code":"LOB76","label":"Data Platform"}},{"Product":{"code":"SSMRTZ","label":"IBM Cognos Controller on Cloud"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Component":" ","Platform":[{"code":"","label":""}],"Version":"","Edition":"","Line of Business":{"code":"LOB76","label":"Data Platform"}}]
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Document Information
More support for:
IBM Cognos Controller
Software version:
10.2.1, 10.3.0, 10.3.1
Operating system(s):
Windows
Document number:
152073
Modified date:
08 May 2025
UID
swg21470363
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