I'm having issues with Tomcat deploy on ubuntu server

Hi everybody,

I'm trying to deploy the bonita 7.3 community edition on a tomcat 7 contained into an ubuntu 16.
I've follow this tutorial http://documentation.bonitasoft.com/bonitabpm/?page=ubuntu-openjdk-tomca....

However i'm getting the following error while trying to start the tomcat container.

   2016-08-09 11:26:49.035 -0500 INFORMACI?N: org.bonitasoft.platform.setup.PlatformSetup Connected to 'null' database with url: 'jdbc:postgresql://localhost:5432/bonita' with user: 'bonita_db_user'



2016-08-09 11:26:49.038 -0500 GRAVE: org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/bonita] Excepci?n enviando evento inicializado de contexto a instancia de escuchador de clase org.bonitasoft.engine.api.internal.servlet.EngineInitializerListener
java.lang.RuntimeException: Error while initializing the Engine
    at org.bonitasoft.engine.api.internal.servlet.EngineInitializerListener.contextInitialized(EngineInitializerListener.java:39)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5068)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5584)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:899)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:875)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)
    at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:677)
    at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1962)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.IllegalArgumentException: dbVendor is null
    at org.bonitasoft.platform.setup.ScriptExecutor.<init>(ScriptExecutor.java:87)
    at org.bonitasoft.platform.setup.PlatformSetup.initServices(PlatformSetup.java:350)
    at org.bonitasoft.platform.setup.PlatformSetup.initPlatformSetup(PlatformSetup.java:395)
    at org.bonitasoft.platform.setup.PlatformSetup.init(PlatformSetup.java:111)
    at org.bonitasoft.engine.api.internal.servlet.EngineInitializerListener.contextInitialized(EngineInitializerListener.java:35)
    ... 13 more

2016-08-09 11:26:49.254 -0500 GRAVE: org.bonitasoft.console.common.server.servlet.PlatformTenantListener Error initializing platform configuration. Engine most likely failed to start. Check previous error logs for more details.`

i could not find where should i specify the dbVendor.

i've also tried to clone the code for the community edition following this tutorial http://documentation.bonitasoft.com/bonitabpm/?page=building-community-e... without success.

Thanks in advance for the help