org.apache.sling.scripting.sightly.SightlyException: Cannot find a file corresponding to class com.suninternational.aem.app.components.TopNavigation in the repository.

I had the same issue, I checked the bundles status and I figured out this bundle "Adobe Experience Manager Core WCM Components Core Bundle (com.adobe.cq.core.wcm.components.core)" was installed but not active because of dependencies missing, I have an AEM 6.3 instance so I solved this by installing AEM 6.3 Service Pack 2 (6.3.2.0) and AEM Comulative Fix Pack.

Hi , i met the same issue with you.but the exception is Page,not TopNavigation ,below is entite log:

27.04.2018 09:03:35.201 *ERROR* [0:0:0:0:0:0:0:1 [1524791015139] GET /content/wknd/en/art.html HTTP/1.1] com.day.cq.wcm.core.impl.WCMDeveloperModeFilter Error during include of SlingRequestPathInfo: path='/content/wknd/en/art/jcr:content', selectorString='null', extension='html', suffix='null'

org.apache.sling.scripting.sightly.SightlyException: Cannot find a file corresponding to class com.adobe.cq.wcm.core.components.models.Page in the repository.

at org.apache.sling.scripting.sightly.impl.engine.SightlyJavaCompilerService.compileRepositoryJavaClass(SightlyJavaCompilerService.java:198)

at org.apache.sling.scripting.sightly.impl.engine.SightlyJavaCompilerService.getInstance(SightlyJavaCompilerService.java:109)

at org.apache.sling.scripting.sightly.impl.engine.extension.use.JavaUseProvider.provide(JavaUseProvider.java:131)

at org.apache.sling.scripting.sightly.impl.engine.extension.use.UseRuntimeExtension.call(UseRuntimeExtension.java:72)

at org.apache.sling.scripting.sightly.impl.engine.runtime.RenderContextImpl.call(RenderContextImpl.java:75)

at org.apache.sling.scripting.sightly.apps.core.wcm.components.page.v2.page.page_html.render(page_html.java:44)

at org.apache.sling.scripting.sightly.java.compiler.RenderUnit.render(RenderUnit.java:48)

at org.apache.sling.scripting.sightly.impl.engine.SightlyCompiledScript.eval(SightlyCompiledScript.java:61)

at org.apache.sling.scripting.core.impl.DefaultSlingScript.call(DefaultSlingScript.java:386)

at org.apache.sling.scripting.core.impl.DefaultSlingScript.eval(DefaultSlingScript.java:184)

at org.apache.sling.scripting.core.impl.DefaultSlingScript.service(DefaultSlingScript.java:491)

at org.apache.sling.engine.impl.request.RequestData.service(RequestData.java:552)

at org.apache.sling.engine.impl.filter.SlingComponentFilterChain.render(SlingComponentFilterChain.java:44)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:77)

at com.day.cq.wcm.core.impl.WCMDeveloperModeFilter.doFilterWithErrorHandling(WCMDeveloperModeFilter.java:163)

at com.day.cq.wcm.core.impl.WCMDeveloperModeFilter.doFilter(WCMDeveloperModeFilter.java:134)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.wcm.core.impl.WCMDebugFilter.doFilterWithErrorHandling(WCMDebugFilter.java:192)

at com.day.cq.wcm.core.impl.WCMDebugFilter.doFilter(WCMDebugFilter.java:159)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.wcm.core.impl.WCMComponentFilter.doFilter(WCMComponentFilter.java:278)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.personalization.impl.TargetComponentFilter.doFilter(TargetComponentFilter.java:96)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at org.apache.sling.engine.impl.SlingRequestProcessorImpl.processComponent(SlingRequestProcessorImpl.java:282)

at org.apache.sling.engine.impl.SlingRequestProcessorImpl.dispatchRequest(SlingRequestProcessorImpl.java:322)

at org.apache.sling.engine.impl.request.SlingRequestDispatcher.dispatch(SlingRequestDispatcher.java:211)

at org.apache.sling.engine.impl.request.SlingRequestDispatcher.include(SlingRequestDispatcher.java:104)

at com.day.cq.wcm.core.impl.WCMComponentFilter$ForwardRequestDispatcher.include(WCMComponentFilter.java:516)

at org.apache.jsp.libs.cq.Page.Page_jsp._jspService(Page_jsp.java:106)

at org.apache.sling.scripting.jsp.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:725)

at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:502)

at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:449)

at org.apache.sling.scripting.jsp.JspScriptEngineFactory.callJsp(JspScriptEngineFactory.java:346)

at org.apache.sling.scripting.jsp.JspScriptEngineFactory.access$100(JspScriptEngineFactory.java:101)

at org.apache.sling.scripting.jsp.JspScriptEngineFactory$JspScriptEngine.eval(JspScriptEngineFactory.java:607)

at org.apache.sling.scripting.core.impl.DefaultSlingScript.call(DefaultSlingScript.java:388)

at org.apache.sling.scripting.core.impl.DefaultSlingScript.eval(DefaultSlingScript.java:184)

at org.apache.sling.scripting.core.impl.DefaultSlingScript.service(DefaultSlingScript.java:491)

at org.apache.sling.engine.impl.request.RequestData.service(RequestData.java:552)

at org.apache.sling.engine.impl.filter.SlingComponentFilterChain.render(SlingComponentFilterChain.java:44)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:77)

at com.day.cq.wcm.core.impl.WCMDebugFilter.doFilter(WCMDebugFilter.java:156)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.wcm.core.impl.WCMComponentFilter.filterRootInclude(WCMComponentFilter.java:375)

at com.day.cq.wcm.core.impl.WCMComponentFilter.doFilter(WCMComponentFilter.java:190)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.personalization.impl.TargetComponentFilter.doFilter(TargetComponentFilter.java:96)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at org.apache.sling.engine.impl.SlingRequestProcessorImpl.processComponent(SlingRequestProcessorImpl.java:282)

at org.apache.sling.engine.impl.filter.RequestSlingFilterChain.render(RequestSlingFilterChain.java:49)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:71)

at com.day.cq.wcm.core.impl.warp.TimeWarpFilter.doFilter(TimeWarpFilter.java:109)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.adobe.cq.social.ugcbase.security.impl.SaferSlingPostServlet.doFilter(SaferSlingPostServlet.java:114)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.dam.core.impl.assetlinkshare.AdhocAssetShareAuthHandler.doFilter(AdhocAssetShareAuthHandler.java:436)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.dam.core.impl.servlet.ActivityRecordHandler.doFilter(ActivityRecordHandler.java:154)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:73)

at com.adobe.granite.rest.impl.servlet.ApiResourceFilter.doFilter(ApiResourceFilter.java:70)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.adobe.granite.requests.logging.impl.RequestLoggerImpl.doFilter(RequestLoggerImpl.java:126)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.adobe.granite.rest.assets.impl.AssetContentDispositionFilter.doFilter(AssetContentDispositionFilter.java:96)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.adobe.granite.csrf.impl.CSRFFilter.doFilter(CSRFFilter.java:217)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at org.apache.sling.security.impl.ContentDispositionFilter.doFilter(ContentDispositionFilter.java:180)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.wcm.core.impl.AuthoringUIModeServiceImpl.doFilter(AuthoringUIModeServiceImpl.java:367)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.wcm.mobile.core.impl.redirect.RedirectFilter.doFilter(RedirectFilter.java:248)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.mango.core.filters.LoggingFilter.doFilter(LoggingFilter.java:50)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at org.apache.sling.engine.impl.debug.RequestProgressTrackerLogFilter.doFilter(RequestProgressTrackerLogFilter.java:107)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.adobe.cq.social.commons.cors.CORSAuthenticationFilter.doFilter(CORSAuthenticationFilter.java:91)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.wcm.foundation.forms.FormsHandlingServletHelper.handleFilter(FormsHandlingServletHelper.java:221)

at com.day.cq.wcm.foundation.forms.impl.FormsHandlingServlet.doFilter(FormsHandlingServlet.java:138)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.adobe.granite.optout.impl.OptOutFilter.doFilter(OptOutFilter.java:76)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.wcm.core.impl.WCMRequestFilter.doFilter(WCMRequestFilter.java:90)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.adobe.cq.history.impl.HistoryRequestFilter.doFilter(HistoryRequestFilter.java:122)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.adobe.cq.mcm.campaign.servlets.CampaignCopyTracker.doFilter(CampaignCopyTracker.java:100)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at org.apache.sling.rewriter.impl.RewriterFilter.doFilter(RewriterFilter.java:83)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.adobe.granite.httpcache.impl.InnerCacheFilter.doFilter(InnerCacheFilter.java:81)

at com.adobe.granite.httpcache.impl.InnerCacheFilter.doFilter(InnerCacheFilter.java:60)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at org.apache.sling.i18n.impl.I18NFilter.doFilter(I18NFilter.java:138)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:73)

at com.adobe.granite.resourceresolverhelper.impl.ResourceResolverHelperImpl.doFilter(ResourceResolverHelperImpl.java:83)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at org.apache.sling.engine.impl.SlingRequestProcessorImpl.doProcessRequest(SlingRequestProcessorImpl.java:151)

at org.apache.sling.engine.impl.SlingMainServlet.service(SlingMainServlet.java:219)

at org.apache.felix.http.base.internal.handler.ServletHandler.handle(ServletHandler.java:85)

at org.apache.felix.http.base.internal.dispatch.InvocationChain.doFilter(InvocationChain.java:79)

at com.adobe.granite.license.impl.LicenseCheckFilter.doFilter(LicenseCheckFilter.java:308)

at org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:135)

at org.apache.felix.http.base.internal.dispatch.InvocationChain.doFilter(InvocationChain.java:74)

at org.apache.felix.http.sslfilter.internal.SslFilter.doFilter(SslFilter.java:96)

at org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:135)

at org.apache.felix.http.base.internal.dispatch.InvocationChain.doFilter(InvocationChain.java:74)

at org.apache.sling.security.impl.ReferrerFilter.doFilter(ReferrerFilter.java:295)

at org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:135)

at org.apache.felix.http.base.internal.dispatch.InvocationChain.doFilter(InvocationChain.java:74)

at org.apache.sling.i18n.impl.I18NFilter.doFilter(I18NFilter.java:138)

at org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:135)

at org.apache.felix.http.base.internal.dispatch.InvocationChain.doFilter(InvocationChain.java:74)

at org.apache.sling.featureflags.impl.FeatureManager.doFilter(FeatureManager.java:116)

at org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:135)

at org.apache.felix.http.base.internal.dispatch.InvocationChain.doFilter(InvocationChain.java:74)

at org.apache.sling.engine.impl.log.RequestLoggerFilter.doFilter(RequestLoggerFilter.java:72)

at org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:135)

at org.apache.felix.http.base.internal.dispatch.InvocationChain.doFilter(InvocationChain.java:74)

at org.apache.felix.http.base.internal.dispatch.Dispatcher.dispatch(Dispatcher.java:128)

at org.apache.felix.http.base.internal.dispatch.DispatcherServlet.service(DispatcherServlet.java:49)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:725)

at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:812)

at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:587)

at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:221)

at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)

at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)

at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)

at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)

at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)

at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:215)

at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)

at org.eclipse.jetty.server.Server.handle(Server.java:499)

at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311)

at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)

at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)

at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)

at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)

at java.lang.Thread.run(Unknown Source)

any idea is thankful

Did you perform a Java downgrade or so on your system?

Is this part of a custom Java implementation -- com.suninternational.aem.app.components.TopNavigation.

Have you added custom Java logic in a component?

This error means your sightly component is not able to locate the java class com.suninternational.aem.app.components.TopNavigation . Can you go to your felix console and check if all your project bundles are active ?.