Hi,
On Mon, May 23, 2022 at 2:03 PM vahid ghasemi <vahidghasemi...@gmail.com> wrote: > Hello, > I have the below error and I don't know this is from where and how I should > fix it. > FunctionsExecuter.processNext: ReferenceError: Main is not defined > You must be doing something like: target.appendJavaScript("Main.doSomething()"); But you forgot to contribute the JavaScriptPackageResource that defines 'Main', e.g. @Override public void renderHead(IHeaderResponse response) { response.render(JavaScriptHeaderItem.forReference(new JavaScriptResourceReference(MyClass.class, "some.js"))) }