To simplify things and help our users to be more productive, we have archived the current forum and focus our efforts on helping developers on Stack Overflow. You can post new questions on Stack Overflow or join our Discord channel.
I have Vaadin 6 application running on tomcat 7 on my local.
it was running successfully on testing environment till present.(tomcat8)
Now after some enhancements , it is again deployed on testing env(tomcat 8) (running properly on local(tomcat7)).
but is throwing an error.I dont understand that error.Please see the attached screenshot
Communication ProblemTake note of any unsaved data, and Click here to continue(Syntax error): unexpected identifier "Original JSON text:HTML PUBLIC " //IETF/DTD HTML 2.0//EN"?Proxy ErrorProxy server received an invalid response from an upstream server.The proxy server could not handle the request POST/ztime/UIDL. Reason: Error reading from remote server
Please if any one can help me, will be appreciated.