Installed Tomcat7 via repository via Synaptic package manager

& pasted my app(Beerv1) folder to /var/lib/tomcat7/webapps/ & also to /usr/share/tomcat7-root/
Still gets
HTTP Status 404 - /Beerv1/form.html
Using:
CLASSPATH: /usr/share/tomcat7//bin/bootstrap.jar:/usr/share/tomcat7//bin/tomcat-juli.jar touch: cannot touch ‘/usr/share/tomcat7//logs/catalina.out’: Permission denied ./catalina.sh: 387: ./catalina.sh: cannot create /usr/share/tomcat7//logs/catalina.out: Permission denied
This error shows after I uninstalled Tomcat7 & downloaded package manually from apache-tomcat website, extracted it to (/usr/share) & added CATALINA_HOME=<path> & JAVA_HOME=<path>.
My webapps weren't working on repository package. I pasted my webapps in both folder /usr/share/tomcat7-root & /var/lib/tomcat7/webapps. In Windows just pasting webapps worked but in Ubuntu doesn't. Does it require any extra configuration?
I read somewhere that myapp.xml file should be made in /etc/tomcat7/conf/catalina folder & writing etc configurations. But that also didn't worked.