Javascript GWT:无法读取null的属性reuseLoaderConfig

我们有一个GWT-EXT应用程序，GWT编译器的详细JavaScript标志已打开，我们看到以下错误：

com.google.gwt.event.shared.UmbrellaException: Exception caught: (TypeError) : Cannot read property 'com_sencha_gxt_data_shared_loader_Loader_reuseLoadConfig' of null
    at Unknown.com_google_gwt_core_client_impl_StackTraceCreator_createStackTrace__Lcom_google_gwt_core_client_JsArrayString_2(0.js@141)
    at Unknown.com_google_gwt_core_client_impl_StackTraceCreator$CollectorChrome_fillInStackTrace__Ljava_lang_Throwable_2V(0.js@11)
    at Unknown.com_google_gwt_core_client_impl_StackTraceCreator_fillInStackTrace__Ljava_lang_Throwable_2V(0.js@134)
    at Unknown.java_lang_Throwable_$fillInStackTrace__Ljava_lang_Throwable_2Ljava_lang_Throwable_2(0.js@3)
    at Unknown.java_lang_Throwable_$$init__Ljava_lang_Throwable_2V(0.js@3)
    at Unknown.java_lang_Throwable_Throwable__Ljava_lang_String_2Ljava_lang_Throwable_2V(0.js@3)
    at Unknown.java_lang_Exception_Exception__Ljava_lang_String_2Ljava_lang_Throwable_2V(0.js@77)
    at Unknown.java_lang_RuntimeException_RuntimeException__Ljava_lang_String_2Ljava_lang_Throwable_2V(0.js@77)
    at Unknown.com_google_web_bindery_event_shared_UmbrellaException_UmbrellaException__Ljava_util_Set_2V(0.js@91)
    at Unknown.com_google_gwt_event_shared_UmbrellaException_UmbrellaException__Ljava_util_Set_2V(0.js@94)
    at Unknown.com_google_gwt_event_shared_HandlerManager_$fireEvent__Lcom_google_gwt_event_shared_HandlerManager_2Lcom_google_gwt_event_shared_GwtEvent_2V(0.js@13)
    at Unknown.com_google_gwt_user_client_ui_Widget_$fireEvent__Lcom_google_gwt_user_client_ui_Widget_2Lcom_google_gwt_event_shared_GwtEvent_2V(0.js@128)
    at Unknown.com_sencha_gxt_widget_core_client_Component_$fireEvent__Lcom_sencha_gxt_widget_core_client_Component_2Lcom_google_gwt_event_shared_GwtEvent_2V(0.js@3)
    at Unknown.com_sencha_gxt_widget_core_client_Component_$show__Lcom_sencha_gxt_widget_core_client_Component_2V(0.js@5)
    at Unknown.com_sencha_gxt_widget_core_client_Component_show__V(0.js@3)
    at Unknown.com_sencha_gxt_widget_core_client_Component_$setVisible__Lcom_sencha_gxt_widget_core_client_Component_2ZV(0.js@23)
    at Unknown.com_sencha_gxt_widget_core_client_Component_setVisible__ZV(0.js@3)
    at

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如何排除此错误

您是在编译模式还是开发模式下获得此异常？这似乎表明加载程序的加载程序配置为null。如果重新运行相同的场景，我认为您必须在开发模式（提供java stacktrace）下获得此异常。如何设置加载程序配置？您可以深入gxt库中com.sencha.gxt.data.shared.loader.loader类的源代码。GXT源代码将出现在JAR中，因为GWT需要它进行编译。