Using with Vaadin 7.5.8 but raises error ...

[dmarko484]

... like this on the screen on place of upload widget. Any idea what is wrong here?

Widgetset 'com.vaadin.DefaultWidgetSet' does not contain implementation for org.vaadin.easyuploads.MultiUpload. Check its component connector's @connect mapping, widgetsets GWT module description file and re-compile your widgetset. In case you have downloaded a vaadin add-on package, you might want to refer to

[mstahv]

Hi, looks like a typical "no widgetset issue". Did you follow the instructions in the Directory? Do you have application specific "AppWidgetset.gwt.xml" file in your project?

[developerin]

Hi, I have the same problem with Vaadin 7.2.6. I put the jar files of easyuploads into /WEB-INF/lib, added it to build path.

I have a gwt.xml file:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE module PUBLIC "-//Google Inc.//DTD Google Web Toolkit 1.7.0//EN"
    "http://google-web-toolkit.googlecode.com/svn/tags/1.7.0/distro-source/core/src/gwt-module.dtd">
<module>
    <inherits name="com.vaadin.DefaultWidgetSet" />
    <!--<set-property name="user.agent" value="safari"/> <stylesheet src="filtertable/filtertable.css"/> 
        <stylesheet src="popupbutton/popupbutton.css"/> -->
    <inherits name="org.tepi.filtertable.gwt.FilterTableWidgetset" />
</module>

I don't understand this part:

Important
If the add-on has any custom client-side code (i.e. contains a *.gwt.xml file defining a widget set), your application must define a single widget set that inherits from the add-on widget sets in your project. See the links below for more details on how this is accomplished.

Does this mean, that I have to add the entries from SWFUpload.gwt.xml and Widgetset.gwt.xml into my own defined widgetset?

[developerin]

Fixed it with adding:

<inherits name="org.swfupload.SWFUpload" />
<inherits name="org.vaadin.easyuploads.Widgetset" />

to my personal *.gwt.xml file.

[mstahv]

That should do it. I think actually just org.vaadin.easyuploads.Widgetset should be enough as it drags in SWFupload module transitively.

BTW. How do you build your project? What IDE are you using? Your tooling should update your application widgetset automatically to contain that module.

[losblancos113]

I got this error in my Spring Boot project using Vaadin 7.7. How can I fix that ?

[mstahv]

Have you added vaadin-maven-plugin to your project? Like in this example app:

https://github.com/mstahv/spring-data-vaadin-crud/blob/7a76111ec52df99c9eebb3003087f817e79bedcc/pom.xml#L154-L169

[losblancos113]

@mstahv thanks you so much. I have already fixed my problem.