I had a similar problem. I then realised I had made a mistake in the
gwt.xml file with the <source path='xxx'/>, where the "xxx" was not valid.
On Sunday, 23 September 2012 00:19:10 UTC+10, Arturs Elksnis wrote:
>
> Hi Mark,
> Did you get to the bottom of this at all? I just got stuck with
> a pretty much identical problem and there's nothing on the web except this
> thread where noone has answered your question.
>
> This would be really good to crack or else I have to use something else
> for charting.
>
> On Monday, February 13, 2012 2:58:16 AM UTC, Mark wrote:
>>
>> I have been developing an app of several thousand lines that has
>> worked great for weeks.All of a sudden yesterday it stopped loading in
>> hosted mode (eclipse Indigo, chrome 16.0.912.77, GWT 2.4.0, Google
>> plugin 3.7) . As described below, the problem is <inherits
>> name="com.google.gwt.visualization.Visualization"/> in
>> myProject.gwt.xml that is included for charts (and this used to
>> work...)
>>
>> On loading (hosted mode on jetty), it raises this error:
>>
>> [ERROR] [reagentcalculator] - Failed to load module
>> 'reagentcalculator' from user agent 'Mozilla/5.0 (Windows NT 6.1;
>> WOW64) AppleWebKit/535.7 (KHTML, like Gecko) Chrome/16.0.912.77
>> Safari/535.7' at quickstart.local:8243
>>
>>
>> 21:48:57.007 [ERROR] [reagentcalculator] Unable to initialize static
>> dispatcher
>>
>> java.lang.NoClassDefFoundError: com/google/gwt/core/client/
>> JavaScriptObject
>> at java.lang.ClassLoader.findBootstrapClass(Native Method)
>> at java.lang.ClassLoader.findBootstrapClassOrNull(Unknown Source)
>> at java.lang.ClassLoader.loadClass(Unknown Source)
>> at java.lang.ClassLoader.loadClass(Unknown Source)
>> at java.lang.ClassLoader.defineClass1(Native Method)
>> at java.lang.ClassLoader.defineClassCond(Unknown Source)
>> at java.lang.ClassLoader.defineClass(Unknown Source)
>> at java.lang.ClassLoader.defineClass(Unknown Source)
>> at
>> com.google.gwt.dev.shell.CompilingClassLoader.findClass(CompilingClassLoader.java:
>>
>>
>> 1085)
>> at java.lang.ClassLoader.loadClass(Unknown Source)
>> at java.lang.ClassLoader.loadClass(Unknown Source)
>> at java.lang.Class.forName0(Native Method)
>> at java.lang.Class.forName(Unknown Source)
>> at com.google.gwt.dev.shell.JsValueGlue.set(JsValueGlue.java:220)
>> at
>> com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:
>> 129)
>> at
>> com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:
>> 561)
>> at
>> com.google.gwt.dev.shell.ModuleSpace.invokeNativeVoid(ModuleSpace.java:
>> 289)
>> at com.google.gwt.dev.shell.ModuleSpace.onLoad(ModuleSpace.java:
>> 332)
>> at
>> com.google.gwt.dev.shell.OophmSessionHandler.loadModule(OophmSessionHandler.java:
>>
>>
>> 200)
>> at
>> com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:
>>
>>
>> 525)
>> at
>> com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:
>>
>> 363)
>> at java.lang.Thread.run(Unknown Source)
>>
>>
>> Next step was to try a new project from the GWT template... it
>> worked! Okay, so I assumed I introduced a bug. Over several hours, I
>> reduced my application down to the following (which you may recognize
>> as the preamble to the template).
>>
>>
>> public void onModuleLoad() {
>> final Button sendButton = new Button("Send");
>> final TextBox nameField = new TextBox();
>> nameField.setText("GWT User");
>> final Label errorLabel = new Label();
>>
>> // We can add style names to widgets
>> sendButton.addStyleName("sendButton");
>>
>> // Add the nameField and sendButton to the RootPanel
>> // Use RootPanel.get() to get the entire body element
>> RootPanel.get("nameFieldContainer").add(nameField);
>> RootPanel.get("sendButtonContainer").add(sendButton);
>> RootPanel.get("errorLabelContainer").add(errorLabel);
>> }
>>
>> Alas, it STILL throws the error! Tracked down the problem to the line
>> in myProject.gwt.xml
>> <inherits name="com.google.gwt.visualization.Visualization"/>
>> because I am using google charts in the full app (but not in the small
>> version above). gwt-visualization.jar (latest 1.1.2) is copied into
>> WEB-INF/lib and in project build path. If I comment out the inherits
>> line, The code above works fine.
>>
>> Any ideas?
>>
>> Thanks,
>> Mark
>>
>>
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