How to login to Tomcat?

I'm asked for my Tomcat username/password, but nothing works.  My goal is to access the Thingworx composer.

Steps taken:

-Go go web browser localhost:80

-Tomcat page appears

-Click on Manager app

-Pop up for Username/Password appears, the password I used when setting up Tomcat doesn't work

-Go into Tomcat-users.xml and add this code (below)

<tomcat-users>

<role rolename="manager-gui"/>

<role rolename="manager-script"/>

<user username="admin" password="password" roles="manager-gui,manager-script" />

</tomcat-users>

​-Stop/Start Tomcat and nothing works, I've tried several combinations of code and nothing.

What am I missing?

Thanks,

Charlie