本文将为您提供关于flask.cli.NoAppException：应用程序崩溃的详细介绍，我们还将为您解释应用程序崩溃writeminidump的相关知识，同时，我们还将为您提供关于android–

本文将为您提供关于flask.cli.NoAppException：应用程序崩溃的详细介绍，我们还将为您解释应用程序崩溃writeminidump的相关知识，同时，我们还将为您提供关于android – 重构包名称使用ClassNotFoundException打破应用程序,因为找不到Application类,即使它在那里、ClassNotFound: KeeperException$NoNodeException、ClassNotFoundException: JspException、CXF ClassNotFoundException：javax.ws.rs.MessageProcessingException的实用信息。

• flask.cli.NoAppException：应用程序崩溃（应用程序崩溃writeminidump）
• android – 重构包名称使用ClassNotFoundException打破应用程序,因为找不到Application类,即使它在那里
• ClassNotFound: KeeperException$NoNodeException
• ClassNotFoundException: JspException
• CXF ClassNotFoundException：javax.ws.rs.MessageProcessingException

flask.cli.NoAppException：应用程序崩溃（应用程序崩溃writeminidump）

当我尝试访问Flask应用程序时，该应用程序崩溃了。

这类似于this或this。但是，我的设置似乎正确。

flask.cli.NoAppException：提供的文件/路径（服务器）似乎不存在。请确认路径正确。如果应用不在PYTHONPATH上，请确保扩展名为.py

我的环境变量设置正确。

export FLASK_APP=server.pyexport FLASK_DEBUG=1

我的服务器文件是server.py，__init__.py目录中没有任何文件。

我不记得对代码进行任何特殊更改。该错误可能来自哪里？

答案1

问题是某些软件包丢失或损坏。

我重新安装了所有内容，pip3 install -r requirements.txt --ignore-installed并且知道它可以正常工作。

android – 重构包名称使用ClassNotFoundException打破应用程序,因为找不到Application类,即使它在那里

我有这个包格式：

com
  example
    name
      oldAppName

现在,我通过Shift F6重构并重命名为：

com
  myCompanyName
    name
      newAppName

但是,现在当我运行我的应用程序时,我遇到了这个崩溃：

java.lang.classNotFoundException: Didn't find class "com.example.name.oldAppName.Application" on path: DexPathList[[zip file "/data/app/com.myCompanyName.name.newAppName1/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]

我在newAppName下有我的Application.java,它在Manifest中正确定义
我尝试过的是：

>清洁和重建
>在build.gradle中更改applicationId
>清单中的包名称是正确的,应用程序和活动的所有名称也是正确的.

实际上,这是我的应用程序清单标记：

<application
  android:name=".Application"
  ...
  >

甚至将.Application更改为完整的包名(com.blah.blah.Application)也行不通.

我错过了什么吗？有缺失的一步吗？

这是完整的日志：

    java.lang.RuntimeException: Unable to instantiate application com.android.tools.fd.runtime.BootstrapApplication: java.lang.IllegalStateException: java.lang.classNotFoundException: com.example.name.oldAppName.Application
      at android.app.LoadedApk.makeApplication(LoadedApk.java:516)
      at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4345)
      at android.app.ActivityThread.access$1500(ActivityThread.java:135)
      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
      at android.os.Handler.dispatchMessage(Handler.java:102)
      at android.os.Looper.loop(Looper.java:136)
      at android.app.ActivityThread.main(ActivityThread.java:5045)
      at java.lang.reflect.Method.invokeNative(Native Method)
      at java.lang.reflect.Method.invoke(Method.java:515)
      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
      at dalvik.system.NativeStart.main(Native Method)
   Caused by: java.lang.IllegalStateException: java.lang.classNotFoundException: com.example.name.oldAppName.Application
      at com.android.tools.fd.runtime.BootstrapApplication.createRealApplication(BootstrapApplication.java:220)
      at com.android.tools.fd.runtime.BootstrapApplication.attachBaseContext(BootstrapApplication.java:239)
      at android.app.Application.attach(Application.java:181)
      at android.app.Instrumentation.newApplication(Instrumentation.java:1008)
      at android.app.Instrumentation.newApplication(Instrumentation.java:992)
      at android.app.LoadedApk.makeApplication(LoadedApk.java:511)
      at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4345) 
      at android.app.ActivityThread.access$1500(ActivityThread.java:135) 
      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256) 
      at android.os.Handler.dispatchMessage(Handler.java:102) 
      at android.os.Looper.loop(Looper.java:136) 
      at android.app.ActivityThread.main(ActivityThread.java:5045) 
      at java.lang.reflect.Method.invokeNative(Native Method) 
      at java.lang.reflect.Method.invoke(Method.java:515) 
      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779) 
      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595) 
      at dalvik.system.NativeStart.main(Native Method) 
   Caused by: java.lang.classNotFoundException: com.example.name.oldAppName.Application
      at java.lang.class.classForName(Native Method)
      at java.lang.class.forName(Class.java:251)
      at java.lang.class.forName(Class.java:216)
      at com.android.tools.fd.runtime.BootstrapApplication.createRealApplication(BootstrapApplication.java:209)
      at com.android.tools.fd.runtime.BootstrapApplication.attachBaseContext(BootstrapApplication.java:239) 
      at android.app.Application.attach(Application.java:181) 
      at android.app.Instrumentation.newApplication(Instrumentation.java:1008) 
      at android.app.Instrumentation.newApplication(Instrumentation.java:992) 
      at android.app.LoadedApk.makeApplication(LoadedApk.java:511) 
      at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4345) 
      at android.app.ActivityThread.access$1500(ActivityThread.java:135) 
      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256) 
      at android.os.Handler.dispatchMessage(Handler.java:102) 
      at android.os.Looper.loop(Looper.java:136) 
      at android.app.ActivityThread.main(ActivityThread.java:5045) 
      at java.lang.reflect.Method.invokeNative(Native Method) 
      at java.lang.reflect.Method.invoke(Method.java:515) 
      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779) 
      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595) 
      at dalvik.system.NativeStart.main(Native Method) 
   Caused by: java.lang.NoClassDefFoundError: com.example.name.oldAppName/Application
      at java.lang.class.classForName(Native Method) 
      at java.lang.class.forName(Class.java:251) 
      at java.lang.class.forName(Class.java:216) 
      at com.android.tools.fd.runtime.BootstrapApplication.createRealApplication(BootstrapApplication.java:209) 
      at com.android.tools.fd.runtime.BootstrapApplication.attachBaseContext(BootstrapApplication.java:239) 
      at android.app.Application.attach(Application.java:181) 
      at android.app.Instrumentation.newApplication(Instrumentation.java:1008) 
      at android.app.Instrumentation.newApplication(Instrumentation.java:992) 
      at android.app.LoadedApk.makeApplication(LoadedApk.java:511) 
      at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4345) 
      at android.app.ActivityThread.access$1500(ActivityThread.java:135) 
      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256) 
      at android.os.Handler.dispatchMessage(Handler.java:102) 
      at android.os.Looper.loop(Looper.java:136) 
      at android.app.ActivityThread.main(ActivityThread.java:5045) 
      at java.lang.reflect.Method.invokeNative(Native Method) 
      at java.lang.reflect.Method.invoke(Method.java:515) 
      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779) 
      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595) 
      at dalvik.system.NativeStart.main(Native Method) 
   Caused by: java.lang.classNotFoundException: Didn't find class "com.example.name.oldAppName.Application" on path: DexPathList[[zip file "/data/app/com.newCompanyName.name.newAppName-1.apk"],nativeLibraryDirectories=[/data/app-lib/com.myCompanyName.name.newAppName-1, /system/lib]]
      at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
      at java.lang.classLoader.loadClass(ClassLoader.java:497)
      at java.lang.classLoader.loadClass(ClassLoader.java:457)
      at java.lang.class.classForName(Native Method) 
      at java.lang.class.forName(Class.java:251) 
      at java.lang.class.forName(Class.java:216) 
      at com.android.tools.fd.runtime.BootstrapApplication.createRealApplication(BootstrapApplication.java:209) 
      at com.android.tools.fd.runtime.BootstrapApplication.attachBaseContext(BootstrapApplication.java:239) 
      at android.app.Application.attach(Application.java:181) 
      at android.app.Instrumentation.newApplication(Instrumentation.java:1008) 
      at android.app.Instrumentation.newApplication(Instrumentation.java:992) 
      at android.app.LoadedApk.makeApplication(LoadedApk.java:511) 
      at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4345) 
      at android.app.ActivityThread.access$1500(ActivityThread.java:135) 
      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256) 
      at android.os.Handler.dispatchMessage(Handler.java:102) 
      at android.os.Looper.loop(Looper.java:136) 
      at android.app.ActivityThread.main(ActivityThread.java:5045) 
      at java.lang.reflect.Method.invokeNative(Native Method) 
      at java.lang.reflect.Method.invoke(Method.java:515) 
      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779) 
      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595) 
      at dalvik.system.NativeStart.main(Native Method) 

解决方法:

有时,禁用即时运行将解决问题.

或者,如果禁用“即时运行”不起作用,问题可能在于Android Studio尚未识别更改.首先备份您的项目,并注意您必须在此之后重新配置您的VCS(但不会丢失提交或分支,只需注册您的VCS.)

删除应用的.idea和[yourProjectName] .iml.

对于未来的用户：

在Android Studio中重命名包的正确方法

>在“项目”窗格中,选择齿轮图标
>如果选中,则取消选中“Compact Empty Middle Packages”.

>现在继续使用重构 – >重命名每个分解的软件包名称(实际上是com,example,name,oldAppName)
>重命名可能会打开一个警告对话框,您可能需要在其中选择“重命名包”

>完成重命名包后,将gradle中的applicationId替换为正确的
>同步gradle
>清洁和重建

您可以找到更好的版本如何正确重构您的包here

P.S：您必须在未获得“ClassNotFound”异常的位置恢复原始包名称并尝试上述解决方案.

ClassNotFound: KeeperException$NoNodeException

根据网上的教程建立了两个项目，预备用JMeter做压测，在运行DemoServiceMain后报错：

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/zookeeper/KeeperException$NoNodeException
    at com.alibaba.dubbo.remoting.zookeeper.curator.CuratorZookeeperTransporter.connect(CuratorZookeeperTransporter.java:27)
    at com.alibaba.dubbo.remoting.zookeeper.ZookeeperTransporter$Adaptive.connect(ZookeeperTransporter$Adaptive.java)
    at com.alibaba.dubbo.registry.zookeeper.ZookeeperRegistry.<init>(ZookeeperRegistry.java:69)
    at com.alibaba.dubbo.registry.zookeeper.ZookeeperRegistryFactory.createRegistry(ZookeeperRegistryFactory.java:38)
    at com.alibaba.dubbo.registry.support.AbstractRegistryFactory.getRegistry(AbstractRegistryFactory.java:96)
    at com.alibaba.dubbo.registry.RegistryFactory$Adaptive.getRegistry(RegistryFactory$Adaptive.java)
    at com.alibaba.dubbo.registry.integration.RegistryProtocol.getRegistry(RegistryProtocol.java:202)
    at com.alibaba.dubbo.registry.integration.RegistryProtocol.export(RegistryProtocol.java:136)
    at com.alibaba.dubbo.qos.protocol.QosProtocolWrapper.export(QosProtocolWrapper.java:54)
    at com.alibaba.dubbo.rpc.protocol.ProtocolListenerWrapper.export(ProtocolListenerWrapper.java:55)
    at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper.export(ProtocolFilterWrapper.java:98)
    at com.alibaba.dubbo.rpc.Protocol$Adaptive.export(Protocol$Adaptive.java)
    at com.alibaba.dubbo.config.ServiceConfig.doExportUrlsFor1Protocol(ServiceConfig.java:506)
    at com.alibaba.dubbo.config.ServiceConfig.doExportUrls(ServiceConfig.java:358)
    at com.alibaba.dubbo.config.ServiceConfig.doExport(ServiceConfig.java:317)
    at com.alibaba.dubbo.config.ServiceConfig.export(ServiceConfig.java:216)
    at com.alibaba.dubbo.config.spring.ServiceBean.onApplicationEvent(ServiceBean.java:123)
    at com.alibaba.dubbo.config.spring.ServiceBean.onApplicationEvent(ServiceBean.java:49)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)
    at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:393)
    at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:347)
    at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:883)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:546)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:93)
    at com.alibaba.dubbo.container.spring.SpringContainer.start(SpringContainer.java:46)
    at com.alibaba.dubbo.container.Main.main(Main.java:86)
    at com.demo.dubbo.provider.DemoServiceMain.main(DemoServiceMain.java:6)
Caused by: java.lang.ClassNotFoundException: org.apache.zookeeper.KeeperException$NoNodeException
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 30 more
 

发现curator与zkclient如果不同时依赖，其中一个就会报ClassNotFoundException；

然后同时依赖的时候版本不一致，一样会报错

ClassNotFoundException: JspException

java.lang.ClassNotFoundException: JspException
	org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1711)
	org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1556)
	java.lang.Class.getDeclaredMethods0(Native Method)
	java.lang.Class.privateGetDeclaredMethods(Class.java:2427)
	java.lang.Class.getDeclaredMethods(Class.java:1791)
	java.beans.Introspector$1.run(Introspector.java:1287)
	java.security.AccessController.doPrivileged(Native Method)
	java.beans.Introspector.getPublicDeclaredMethods(Introspector.java:1285)
	java.beans.Introspector.getTargetMethodInfo(Introspector.java:1151)
	java.beans.Introspector.getBeanInfo(Introspector.java:402)
	java.beans.Introspector.getBeanInfo(Introspector.java:168)
	java.beans.Introspector.getBeanInfo(Introspector.java:229)
	java.beans.Introspector.<init>(Introspector.java:383)
	java.beans.Introspector.getBeanInfo(Introspector.java:168)
	org.apache.jasper.compiler.Generator$TagHandlerInfo.<init>(Generator.java:3943)
	org.apache.jasper.compiler.Generator$GenerateVisitor.getTagHandlerInfo(Generator.java:2209)
	org.apache.jasper.compiler.Generator$GenerateVisitor.visit(Generator.java:1640)
	org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1539)
	org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2376)
	org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2428)
	org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2434)
	org.apache.jasper.compiler.Node$Root.accept(Node.java:475)
	org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2376)
	org.apache.jasper.compiler.Generator.generate(Generator.java:3489)
	org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:250)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:373)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:353)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:340)
	org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:646)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:357)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
	clap.bnLog.filter.BnLogFilter.doFilter(BnLogFilter.java:34)
	clap.authority.filter.FunOrgAuFilterServlet.doFilter(FunOrgAuFilterServlet.java:33)
	clap.authority.filter.FilterServlet.doFilter(FilterServlet.java:91)
	clap.frames.i18n.filter.LocalFilter.doFilter(LocalFilter.java:71)
	clap.authority.xss.XSSSecurityFilter.doFilter(XSSSecurityFilter.java:68)
	clap.frames.web.SetEncodingFilter.doFilter(SetEncodingFilter.java:33)

===== 19：44 更新 =====

问题终于解决了，但是为什么导致这样的问题还是没能找出来。不过发现这个问题还是因为个人的操作失误导致的，  自作自受啊， 下不为例以后就张姿势了。

说一下我的环境和编译、部署的流程：

环境： 

项目没有使用ant之类的编译工具，运行项目也没有使用IDE内置的容器运行。

而是使用IDE编译代码，再单独启动容器跑程序。 

而问题就出现在编译阶段，因为在IDE中classpath有问题，导致IDE编译没有正确完成，当IDE classpath问题解决了，再启动容器没有报错，也可以正常访问页面。结论就是编译的代码不完整，而不是缺少jar文件或者冲突。一切都是自己咎由自取，活该！

为什么代码编译不完整运行时抛这么奇怪的错误，这个结果还没有弄清楚明白，估计这个要看容器的类加载时肿么了一个回事了，暂且不说了，以后有空估计也不会去看了。如果哪位无聊可以研究下。

终于搞定了，可以继续推进工作了。撤~~~ 

CXF ClassNotFoundException：javax.ws.rs.MessageProcessingException

java.lang.NoClassDefFoundError: javax/ws/rs/MessageProcessingException

Exception in thread "main" java.lang.NoClassDefFoundError: javax/ws/rs/BadRequestException

<dependency>
        <groupId>org.json</groupId>
        <artifactId>json</artifactId>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-c3p0</artifactId>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-entitymanager</artifactId>
    </dependency>
    <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-log4j12</artifactId>
    </dependency>
    <dependency>
        <groupId>postgresql</groupId>
        <artifactId>postgresql</artifactId>
    </dependency>

    CXF: version 2.7.0
    <dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-rt-frontend-jaxws</artifactId>
    </dependency>
    <dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-rt-frontend-jaxrs</artifactId>
    </dependency>
    <dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-rt-transports-http</artifactId>
    </dependency>
    <dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-rt-transports-http-jetty</artifactId>
    </dependency>
    <dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-rt-ws-security</artifactId>
    </dependency>

    rs-api version: 2.0
    <dependency>
        <groupId>javax.ws.rs</groupId>
        <artifactId>javax.ws.rs-api</artifactId>
    </dependency>

    jsr311 version: 1.1.1
    <dependency>
        <groupId>javax.ws.rs</groupId>
        <artifactId>jsr311-api</artifactId>
    </dependency>

<dependency>
    <groupId>javax.ws.rs</groupId>
    <artifactId>javax.ws.rs-api</artifactId>
    <version>2.1-m01</version>
</dependency>

<dependency>
    <groupId>org.apache.cxf</groupId>
    <artifactId>cxf-bundle</artifactId>
    <version>3.0.0-milestone2</version>
</dependency>

关于flask.cli.NoAppException：应用程序崩溃和应用程序崩溃writeminidump的问题我们已经讲解完毕，感谢您的阅读，如果还想了解更多关于android – 重构包名称使用ClassNotFoundException打破应用程序,因为找不到Application类,即使它在那里、ClassNotFound: KeeperException$NoNodeException、ClassNotFoundException: JspException、CXF ClassNotFoundException：javax.ws.rs.MessageProcessingException等相关内容，可以在本站寻找。