WcsExtendlet.service Unable to load

asked 2023-11-21 22:13:32 +0800

andij62
315 ● 1 ● 7

I have an older app that still runs with zk CE 8.0.2.2. On a Tomcat 8.5 with JVM 11.0.20 I get the following error message:

21-Nov-2023 14:48:27.043 INFO [https-openssl-nio-8443-exec-6] org.zkoss.util.resource.impl.LabelLoaderImpl.loadLabels Loading labels for de
21-Nov-2023 14:48:27.352 SEVERE [https-openssl-nio-8443-exec-3] org.zkoss.zk.ui.http.WcsExtendlet.service Unable to load ~./zul/css/norm.css.dsp
    org.zkoss.zel.ELException: Unable to find ExpressionFactory of type: # Licensed to the Apache Software Foundation (ASF) under one or more
        at org.zkoss.zel.ExpressionFactory.newInstance(ExpressionFactory.java:167)
        at org.zkoss.zel.ExpressionFactory.newInstance(ExpressionFactory.java:106)
        at org.zkoss.zel.Util.getExpressionFactory(Util.java:126)
        at org.zkoss.zel.ELManager.getExpressionFactory(ELManager.java:30)
        at org.zkoss.zel.ELContext.convertToType(ELContext.java:306)

Can someone tell me what the problem is

Regards, Andi