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Previously I installed a plugin, then I installed another plugin, it still worked when I designed, but when I ran the program, it had an error as below.

Everyone please give me your opinion. Thanks


Caused by: java.lang.LinkageError: loader constraint violation: loader org.apache.felix.framework.BundleWiringImpl$BundleClassLoader @2ebd8b75 wants to load class org.joget.apps.datalist.model.DataList. A different class with the same name was previously loaded by org.apache.catalina.loader.ParallelWebappClassLoader @3dbbed3e. (org.joget.apps.datalist.model.DataList is in unnamed module of loader org.apache.catalina.loader.ParallelWebappClassLoader @3dbbed3e, parent loader java.net.URLClassLoader @363c32cc)
2895
    at org.joget.plugin.enterprise.DataListInboxMenu.getDataList(DataListInboxMenu.java:269) ~[?:?]
2896
    at org.joget.plugin.enterprise.DataListInboxMenu.viewList(DataListInboxMenu.java:206) ~[?:?]
2897
    at org.joget.apps.userview.lib.InboxMenu.handleList(InboxMenu.java:140) ~[classes/:?]
2898
    at org.joget.plugin.enterprise.DataListInboxMenu.getJspPage(DataListInboxMenu.java:198) ~[?:?]
2899
    at org.joget.apps.userview.model.UserviewMenu.getReadyJspPage(UserviewMenu.java:134) ~[classes/:?]
2900
    at org.joget.apps.userview.service.UserviewUtil.getUserviewMenuHtml(UserviewUtil.java:130) ~[classes/:?]
2901
    at org.joget.apps.userview.service.UserviewThemeProcesser.getContent(UserviewThemeProcesser.java:674) ~[classes/:?]
2902
    at org.joget.apps.userview.service.UserviewThemeProcesser.getHtml(UserviewThemeProcesser.java:214) ~[classes/:?]
2903
    at jdk.internal.reflect.GeneratedMethodAccessor304.invoke(Unknown Source) ~[?:?]
2904
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
2905
    at java.lang.reflect.Method.invoke(Method.java:566) ~[?:?]
2906
    at javax.el.BeanELResolver.getValue(BeanELResolver.java:95) ~[el-api.jar:3.0.FR]
2907
    at org.apache.jasper.el.JasperELResolver.getValue(JasperELResolver.java:125) ~[jasper.jar:9.0.82]
2908
    at org.apache.el.parser.AstValue.getValue(AstValue.java:168) ~[jasper-el.jar:9.0.82]
2909
    at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:189) ~[jasper-el.jar:9.0.82]
2910
    at org.apache.jasper.el.JspValueExpression.getValue(JspValueExpression.java:129) ~[jasper.jar:9.0.82]
2911
    at org.apache.jsp.WEB_002dINF.jsp.ubuilder.v5view_jsp._jspx_meth_c_005fset_005f0(v5view_jsp.java:257) ~[?:?]
2912
    at org.apache.jsp.WEB_002dINF.jsp.ubuilder.v5view_jsp._jspx_meth_c_005fif_005f0(v5view_jsp.java:214) ~[?:?]
2913
    at org.apache.jsp.WEB_002dINF.jsp.ubuilder.v5view_jsp._jspService(v5view_jsp.java:165) ~[?:?]
2914
    at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) ~[jasper.jar:9.0.82]
2915
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:623) ~[servlet-api.jar:4.0.FR]
2916
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:466) ~[jasper.jar:9.0.82]
2917
    ... 103 more
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    1 answer

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      Hi, the error message seems to indicate some kind of classloading conflict. It is likely caused by one or the other plugin you mentioned, so try to identify and remove the culprit.

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