HDC调试需求开发（15万预算）,能者速来！>>> HTTP Status 500 - -------------------------------------------------------------------------------- type Exception report message description The server encountered an internal error that prevented it from fulfilling this request. exception java.lang.NullPointerException org.apache.velocity.tools.view.VelocityView.performMerge(VelocityView.java:942) org.apache.velocity.tools.view.VelocityView.merge(VelocityView.java:902) org.apache.velocity.tools.view.VelocityViewServlet.mergeTemplate(VelocityViewServlet.java:318) org.apache.velocity.tools.view.VelocityViewServlet.doRequest(VelocityViewServlet.java:220) org.apache.velocity.tools.view.VelocityViewServlet.doGet(VelocityViewServlet.java:182) javax.servlet.http.HttpServlet.service(HttpServlet.java:621) javax.servlet.http.HttpServlet.service(HttpServlet.java:728) org.red5.logging.LoggerContextFilter.doFilter(LoggerContextFilter.java:77) note The full stack trace of the root cause is available in the Apache Tomcat/7.0.34 logs.