title: How to install restcomm on Tomcat
body: <p>I want to install <code>restcomm</code> on tomcat7, but when I executed the command <code>ant -buildfile ./build.xml</code>, I receive the following error message:</p>
  
  <pre><code> "[exec] [INFO] ------------------------------------------------------------------------
   [exec] [INFO] Reactor Summary:
   [exec] [INFO] 
   [exec] [INFO] Restcomm Sip Servlets .............................. FAILURE [  0.910 s]
   [exec] [INFO] Sip Servlets Specification Implementation .......... SKIPPED
   [exec] [INFO] Mobicents Sip Servlets Client ...................... SKIPPED
   [exec] [INFO] Sip Servlets JRuby Integration ..................... SKIPPED
   [exec] [INFO] Sip Servlets Specific Annotations .................. SKIPPED
   [exec] [INFO] Sip Servlets Core API .............................. SKIPPED
   [exec] [INFO] Sip Servlets Implementation ........................ SKIPPED
   [exec] [INFO] Sip Servlets Default Application Router ............ SKIPPED
   [exec] [INFO] Sip Servlets Catalina 7 Abstract Layer ............. SKIPPED
   [exec] [INFO] Sip Servlets Loading Specifics for Tomcat 7 ........ SKIPPED
   [exec] [INFO] ------------------------------------------------------------------------
   [exec] [INFO] BUILD FAILURE
   [exec] [INFO] ------------------------------------------------------------------------
   [exec] [INFO] Total time: 3.153 s
   [exec] [INFO] Finished at: 2017-05-20T19:30:54+08:00
   [exec] [INFO] Final Memory: 20M/309M
   [exec] [INFO] ------------------------------------------------------------------------
   [exec] [ERROR] Failed to execute goal org.codehaus.mojo:buildnumber-maven-plugin:1.0:create (default-cli) on project sip-servlets-bootstrap: Cannot get the revision information from the scm repository :
   [exec] [ERROR] Exception while executing SCM command. UnsupportedOperationException
   [exec] [ERROR] -&gt; [Help 1]
   [exec] [ERROR] 
   [exec] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
   [exec] [ERROR] Re-run Maven using the -X switch to enable full debug logging.
   [exec] [ERROR] 
   [exec] [ERROR] For more information about the errors and possible solutions, please read the following articles:
   [exec] [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException"
  </code></pre>
  
  <p>Can anybody please help me out?</p>