Camunda Single Sing on - Tomcat 7.16.0 - NoClassDefFoundError

Hello All,

I am supposed to set up Single Sing On(SSO) for a Camunda instance.

Unfortunately I run into the following problem:

When installing the SSO filter after https://github.com/camunda-consulting/camunda-webapp-plugins/tree/master/camunda-webapp-plugin-sso-autologin the following error occoures:

24-Jan-2022 11:34:41.680 SERIOUS [main] org.apache.catalina.startup.HostConfig.deployDirectory Error deploying web application directory [C:\Users\usicmarket\Tools\camunda\camunda-bpm-tomcat-7.16.0_fresh\server\apache-tomcat-9.0.52\webapps\camunda-invoice]
	java.lang.IllegalStateException: Error starting child process.
...
Caused by: java.lang.NoClassDefFoundError: org/camunda/bpm/webapp/impl/security/auth/Authentication

Steps for the reproduction.

Since I am relatively new in the Camunda environment, it may well be that I have overlooked some documentation or something.
Can anyone tell me what I have missed?

Best regards
Chris

Attachments:
Log: catalina.2022-01-24.log (39.3 KB)
web.xml: web.xml (168.3 KB)