Invalid JSON string: 0 {t:4}" Logging into OBIEE 11.1.1.6.0 after Upgrade

Hi,

The error message "Invalid JSON string: 0{t:4}" javascript error obiee11.1.1.6.0

1)Resolve this issues can you please Clear the browser cache and re-load the page or log in to OBIEE.
2)if its not working then try to Re-deploy the Analytics Application, using the file $Middleware_Home\Oracle_BI1\bifoundation\jee\analytics.ear
know Bug Ref:

This is a known bug in OBIEE 11g
BUG:13845528 - UPGRADING TO 11.1.1.6, ANALYTICS DOES NOT WORK IN FIREFOX 10.0.2 ON WINDOWS 7 PC

Please refer the below doc
OBIEE 11g: Error: "Invalid JSON string: 0 {t:4}" Logging into OBIEE 11.1.1.6.0 after Upgrade [ID 1439063.1]

Thanks
Deva