run vaadin 10 example and happen 404 error

Flow
1

I am v10 newcomer

I download tutorial example into eclipse and run on weblogic server

When my browser is open , I get blank screen(no any UI) and some error (Failed to load resource: the server responded with a status of 404 (Not Found))

http://localhost:3410/project-base/VAADIN/static/client/client-D1AD34905AC1AA5B4DBECA8FB0306D92.cache.js

http://localhost:3410/project-base/frontend/bower_components/vaadin-lumo-styles/color.html

http://localhost:3410/project-base/frontend/bower_components/vaadin-ordered-layout/src/vaadin-vertical-layout.html

…etc

Did I miss something

Thanks in advance

2

Hi,

have you run mvn install first? Also, what is the URL you are navigating to? Is it localhost:3410?
(P.S. Have you downloaded the default Spring-boot starter?)

Best regards,

Anastasia

3

I follow your suggestion and get another error

2020-02-26 16:05:34.826 ERROR 19248 — [ (self-tuning)']
o.s.b.w.servlet.support.ErrorPageFilter : Forwarding to error page from request
[/frontend/bower_components/vaadin-lumo-styles/style.html] due to exception [null]

java.lang.NullPointerException: null
at weblogic.servlet.internal.ServletResponseImpl.sendContentError(ServletResponseImpl.java:738) ~[com.oracle.weblogic.servlet.jar:12.2.1.3]

at weblogic.servlet.internal.ServletResponseImpl.sendError(ServletResponseImpl.java:797) ~[com.oracle.weblogic.servlet.jar:12.2.1.3]

at weblogic.servlet.internal.ServletResponseImpl.sendError(ServletResponseImpl.java:713) ~[com.oracle.weblogic.servlet.jar:12.2.1.3]

at org.springframework.boot.web.servlet.support.ErrorPageFilter$ErrorWrapperResponse.sendErrorIfNecessary(ErrorPageFilter.java:349) ~[spring-boot-2.1.12.RELEASE.jar:2.1.12.RELEASE]

at org.springframework.boot.web.servlet.support.ErrorPageFilter$ErrorWrapperResponse.flushBuffer(ErrorPageFilter.java:343) ~[spring-boot-2.1.12.RELEASE.jar:2.1.12.RELEASE]

at weblogic.servlet.internal.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:330) ~[com.oracle.weblogic.servlet.jar:12.2.1.3]

at org.springframework.web.servlet.mvc.ServletForwardingController.handleRequestInternal(ServletForwardingController.java:141) ~[spring-webmvc-5.1.13.RELEASE.jar:5.1.13.RELEASE]

at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:177) ~[spring-webmvc-5.1.13.RELEASE.jar:5.1.13.RELEASE]

at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:52) ~[spring-webmvc-5.1.13.RELEASE.jar:5.1.13.RELEASE]

at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) ~[spring-webmvc-5.1.13.RELEASE.jar:5.1.13.RELEASE]

at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) ~[spring-webmvc-5.1.13.RELEASE.jar:5.1.13.RELEASE]

at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.1.13.RELEASE.jar:5.1.13.RELEASE]

at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.1.13.RELEASE.jar:5.1.13.RELEASE]

Does someone have any idea?

Thanks in advance