I faced with a problem which I can not solve it.
I have created a Liferay Plugin Project and developed my personal portlet. In addition, I wrote some JSP TagLibs which I have imported to my
view.jspof portlet.Tag lib files are placed in
WEB-INF/tagsproject's folder. At first, project is deployed normally, while some problems are raised in successor deploys. In fact, in this phase, project deploys normally but when I want to review the result in browser, an exception is introduced (The content of exception is mentioned in the end of this message).Besides, I found a solution for this problem, but I know that this is not a standard and logical solution. If I delete
warfile fromliferay\osgi\war, project related file fromliferay\osgi\state\org.eclipse.osgifolder and<project-name>folder formliferay\work, the mentioned problem is erased.I'm using Liferay 7, Ant builder, Eclipse Mars X64, Java 8 x64 and win 7 X64.
Could you please help me to solve this problem? Thanks in advance.
ERROR [http-nio-8080-exec-4][PortletRequestDispatcherImpl:261] org.apache.jasper.JasperException: PWC6033: Error in Javac compilation for JSP__PWC6197: An error occurred at line: 6 in the jsp file: /html/reportViewer/reportDefinition/view.jsp_PWC6199: Generated servlet error:_package org.apache.jsp.tag.web.base does not exist__PWC6197: An error occurred at line: 6 in the jsp file: /html/reportViewer/reportDefinition/view.jsp_PWC6199: Generated servlet error:_package org.apache.jsp.tag.web.base does not exist__ [Sanitized] org.apache.jasper.JasperException: PWC6033: Error in Javac compilation for JSP__PWC6197: An error occurred at line: 6 in the jsp file: /html/reportViewer/reportDefinition/view.jsp_PWC6199: Generated servlet error:_package org.apache.jsp.tag.web.base does not exist__PWC6197: An error occurred at line: 6 in the jsp file: /html/reportViewer/reportDefinition/view.jsp_PWC6199: Generated servlet error:_package org.apache.jsp.tag.web.base does not exist__ [Sanitized] at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:129) at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:299) at org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:392) at org.apache.jasper.compiler.Compiler.compile(Compiler.java:453) at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:625) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:375) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:473) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:377) at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) at com.liferay.portal.osgi.web.servlet.jsp.compiler.JspServlet.service(JspServlet.java:399) at com.liferay.portal.osgi.web.servlet.jsp.compiler.JspServlet.service(JspServlet.java:410) at com.liferay.portal.osgi.web.servlet.context.helper.internal.JspServletWrapper.service(JspServletWrapper.java:70) at org.eclipse.equinox.http.servlet.internal.registration.EndpointRegistration.service(EndpointRegistration.java:153) at org.eclipse.equinox.http.servlet.internal.servlet.FilterChainImpl.doFilter(FilterChainImpl.java:50) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:119) at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:115) at com.liferay.portal.osgi.web.wab.extender.internal.adapter.FilterExceptionAdapter.doFilter(FilterExceptionAdapter.java:46) at org.eclipse.equinox.http.servlet.internal.registration.FilterRegistration.doFilter(FilterRegistration.java:121) at org.eclipse.equinox.http.servlet.internal.servlet.FilterChainImpl.doFilter(FilterChainImpl.java:45) at org.eclipse.equinox.http.servlet.internal.servlet.ResponseStateHandler.processRequest(ResponseStateHandler.java:70) at org.eclipse.equinox.http.servlet.internal.context.DispatchTargets.doDispatch(DispatchTargets.java:117) at org.eclipse.equinox.http.servlet.internal.servlet.RequestDispatcherAdaptor.include(RequestDispatcherAdaptor.java:48) at com.liferay.portlet.PortletRequestDispatcherImpl.dispatch(PortletRequestDispatcherImpl.java:252) at com.liferay.portlet.PortletRequestDispatcherImpl.include(PortletRequestDispatcherImpl.java:102) at com.liferay.portal.kernel.portlet.bridges.mvc.MVCPortlet.include(MVCPortlet.java:556) at com.liferay.portal.kernel.portlet.bridges.mvc.MVCPortlet.include(MVCPortlet.java:572) at com.liferay.portal.kernel.portlet.bridges.mvc.MVCPortlet.doView(MVCPortlet.java:157) at org.samfad.base.controller.BaseController.doView(BaseController.java:107) at org.samfad.report.reportViewer.controller.ReportDefinitionController.doView(ReportDefinitionController.java:70) at com.liferay.portal.kernel.portlet.LiferayPortlet.doDispatch(LiferayPortlet.java:302) at com.liferay.portal.kernel.portlet.bridges.mvc.MVCPortlet.doDispatch(MVCPortlet.java:471) at javax.portlet.GenericPortlet.render(GenericPortlet.java:262) at com.liferay.portal.kernel.portlet.bridges.mvc.MVCPortlet.render(MVCPortlet.java:291) at com.liferay.portlet.FilterChainImpl.doFilter(FilterChainImpl.java:103) at com.liferay.portlet.ScriptDataPortletFilter.doFilter(ScriptDataPortletFilter.java:57) at com.liferay.portlet.FilterChainImpl.doFilter(FilterChainImpl.java:100) at com.liferay.portlet.ScriptDataPortletFilter.doFilter(ScriptDataPortletFilter.java:57) at com.liferay.portlet.FilterChainImpl.doFilter(FilterChainImpl.java:100) . . . .
