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我有一台新笔记本电脑，我想再次处理我的 RapidClipse 项目。所以我安装了 RapidClipse，打开了我的项目，然后在 Designer 上出现内部服务器错误。我用谷歌搜索并找不到任何解决方案。这是错误代码：

Type Exception Report

Message com.vaadin.server.ServiceException: java.lang.IllegalStateException: Push is not available. See previous log messages for more information.

Description The server encountered an unexpected condition that prevented it from fulfilling the request.

Exception

javax.servlet.ServletException: com.vaadin.server.ServiceException: java.lang.IllegalStateException: Push is not available. See previous log messages for more information.
    com.vaadin.server.VaadinServlet.service(VaadinServlet.java:382)
    com.xdev.communication.XdevServlet.service(XdevServlet.java:207)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
    org.apache.catalina.filters.AddDefaultCharsetFilter.doFilter(AddDefaultCharsetFilter.java:88)
    org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:108)
Root Cause

com.vaadin.server.ServiceException: java.lang.IllegalStateException: Push is not available. See previous log messages for more information.
    com.vaadin.server.VaadinService.handleExceptionDuringRequest(VaadinService.java:1487)
    com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1447)
    com.vaadin.server.VaadinServlet.service(VaadinServlet.java:380)
    com.xdev.communication.XdevServlet.service(XdevServlet.java:207)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
    org.apache.catalina.filters.AddDefaultCharsetFilter.doFilter(AddDefaultCharsetFilter.java:88)
    org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:108)
Root Cause

java.lang.IllegalStateException: Push is not available. See previous log messages for more information.
    com.vaadin.ui.PushConfigurationImpl.setPushMode(PushConfiguration.java:207)
    com.vaadin.server.communication.UIInitHandler.getBrowserDetailsUI(UIInitHandler.java:210)
    com.vaadin.server.communication.UIInitHandler.synchronizedHandleRequest(UIInitHandler.java:74)
    com.vaadin.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:41)
    com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1435)
    com.vaadin.server.VaadinServlet.service(VaadinServlet.java:380)
    com.xdev.communication.XdevServlet.service(XdevServlet.java:207)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
    org.apache.catalina.filters.AddDefaultCharsetFilter.doFilter(AddDefaultCharsetFilter.java:88)
    org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:108)
Note The full stack trace of the root cause is available in the server logs.

在此处输入图像描述

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1 回答 1

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可能有很多问题。首先与新旧笔记本电脑无关。您的项目的第二个配置可能已经过时，或者如果您安装了任何外部插件，它也可能导致问题。

故障排除： 1. 卸载 rapidclipse。2. 根据操作系统从用户主目录中删除 .m2 和 .p2 文件夹。3. 将您的项目文件夹移动到其他位置删除工作区。4.重新安装rapidclipse。5. 创建新工作区。6. 将您的项目复制到新工作区。7. 将其导入您的 rapidclipse。

于 2018-09-14T17:54:33.557 回答