ODK Fails to start after upgrade to tomcat 8

What is the problem? Please be detailed.
ODK Aggregate fail to start in Tomcat 8

FAIL - Application at context path [/ODKAggregate] could not be started

What ODK tool and version are you using? And on what device and operating system version?

What steps can we take to reproduce the problem?

What you have you tried to fix the problem?

Anything else we should know or have? If you have a test form or screenshots or logs, attach here.

Hi @Dominic_Sundar! Read your Tomcat logs. What do they say?