[midPoint] ERROR 404 : The requested resource (/midpoint) is not available.

[licence Uni Spé_-_Administarttion Ds Sys Appl]

Hello
I followed the instructions of the installation of the wiki of midpoint
<https://wiki.evolveum.com/display/midPoint/midPoint+on+Ubuntu%2C+Tomcat%2C+PostgreSQL+HOWTO>
on ubuntu step by step but I receive a error that I can not solve :

Type Status report
Message /midpoint /
Description The requested resource (/midpoint) is not available.
Apache Tomcat / 8.5.12

Can you help me please
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