“Assertion failed” while downgrading from Business Objects 4.2 to 4.1

[former_member563260]

Introduction
This blog states how to reinstall Business Objects Platform tools 4.1 after downgrading from 4.1 and how to overcome the “Assertion failed” error.

Content
I have tried downgrading Business Objects Platform Client Tools from 4.2 SP06 to 4.1 SP05.
After successful uninstallation, I attempted to reinstall Business Object 4.1 SP05 but unable to perform operation since I was getting “Assertion failed!” error.

Resolution
This error can be avoided by doing the following

1. Uninstall all Business Object tools and patches installed including Xcelsius


2. Clear all registries after successful uninstallation and manually delete “Program files (X86)/SAP Business Objects” folder


3. If you have installed SAP - Analysis for Office Excel add in (32-bit), it will also be in the same “Program files (X86)/SAP Business Objects” Hence, continue the installation of Business Objects 4.1 in another folder.

Conclusion
The issue has been successfully resolved after performing the above steps.
If you are still facing issues, these notes would be helpful for additional information.
https://apps.support.sap.com/sap/support/knowledge/preview/en/2485676
https://launchpad.support.sap.com/#/notes/2477140