Can't run Visual Composer test application

[Former Member]

Hello,

I just installed CE 7.1 today and I tried to follow the steps explained in <a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/90f8a753-f03d-2a10-5fb0-f14b085b4cb2">Visual Composer for NetWeaver CE: Getting Started with a Typical Workflow</a> to create a VC application. Compiling and deploying worked but when I go to the web page <a href="http://localhost:50100/webdynpro/dispatcher/sap.com/test_{test_component_impl/Test_currency">http://localhost:50100/webdynpro/dispatcher/sap.com/test}test_component_impl/Test_currency</a>, I get a ClassNotFoundException for 'com/sap/tc/wd4vc/extapi/wdp/IExternalIDataStructure' (exception stack trace see below).

How can I solve this problem? What is the cause of this?

java.lang.NoClassDefFoundError: com/sap/tc/wd4vc/extapi/wdp/IExternalIDataStructure
 ------------------------- Loader Info ------------------------- 
ClassLoader name: [sap.com/tc~wd4vc~engineconfig~std] 
Living status: alive 
Direct parent loaders: 
[system:Frame] 
[service:servlet_jsp] 
[service:ejb] 
[sap.com/tc~wd4vc~core~std~interactors~wbx] 
[sap.com/tc~wd4vc~core~std~xglengine] 
[sap.com/tc~wd4vc~core~std~operators] 
[sap.com/tc~wd4vc~core~std~cont~xglcontainer] 
[sap.com/tc~wd4vc~core~std~interactors~pane] 
[sap.com/tc~wd4vc~core~std~infosets] 
[sap.com/tc~wd4vc~core~std~infoactors] 
[sap.com/tc~wd4vc~core~std~relays] 
[sap.com/tc~wd4vc~core~std~toolbar] 
Resources: C:usrsapCE1J01j2eeclusterappssap.comtc~wd4vc~engineconfig~stdservlet_jsp
webdynproresourcessap.comtc~wd4vc~engineconfig~stdrootWEB-INF
libsap.com~tc~wd4vc~engineconfig~std.jar 
--------------------------------------------------------------- 
Error occurred while trying to load
com.sap.tc.wd4vc.core.std.infosets.wdp.IExternalInfosetComponentInterface 

    at com.sap.engine.boot.loader.MultiParentClassLoader.loadClass(MultiParentClassLoader.java:228)
    at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:353)
    at com.sap.tc.wd4vc.engineconfig.std.java.StdConfig.<init>(StdConfig.java:190)
    at com.sap.tc.wd4vc.engineconfig.std.java.StdConfig.<clinit>(StdConfig.java:152)
    at com.sap.ip.bi.wd4vc.config.engineconfig2comp.EngineConfig2Comp.<init>(EngineConfig2Comp.java:249)
    ... 84 more

[Former Member]

After restarting the CE, the problem has disappeared.