Wednesday, October 22, 2014

failed to create a service proxy

i created a project by the gwt-plugin guide
it created some sample codes for me
the first line is:
private final GreetingServiceAsync greetingService = GWT.create(GreetingService.class);
it works
now i want to add a servic proxy which works in sync mode
so i write another line:
private final GreetingService greeting = GWT.create(GreetingService.class);
it show me an error in console when the program starting to run

i wonder why

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