Error with tomcat

Hi Vaadiners

I have implemented a vaadin app using netbeans IDE
and when uploading my war file on the the server i get this message :

FAIL - Application at context path /mymusala could not be started
FAIL - Encountered exception org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina]

can any one help ?
ThnQ in advance :slight_smile:

it’s my third thread and the third time for me to answer myself here :smiley:
LOOOL :smiley:

the problem was in the web.xml configuration