Error: Unable to open class file R.java No such file or directory”。

本文介绍了解决在Eclipse中遇到的“Error:UnabletoopenclassfileR.javaNosuchfileordirectory”问题的方法。具体步骤包括打开偏好设置窗口、调整Java构建路径等。
如果出现 “Error: Unable to open class file R.java No such file or directory”。



Solution:解决方法:

The “Build Path” for your Java environment is not setup correctly in Eclipse. To fix this, follow these steps:

1) Open the Preferences Window by clicking “Window -> Preferences”

2) Find the “Java” section and expand it

3) Select “Build Path”

4) Change the value of Source and output folder from Folders to “Project”

5) Click Apply and then “OK”

Your problem should be resolved!
这个方法中设置成这样adb_keyboard_apk_path = "..\\Hy_autotest\\resource\\superapp\\apk\\ADBKeyboard.apk",为什么调用这个方法报错安装ADB Keyboard,路径:..\Hy_autotest\resource\superapp\apk\ADBKeyboard.apk command: adb -s BB5YLA255PB00104 shell "pm install ..\Hy_autotest\resource\superapp\apk\ADBKeyboard.apk" Error: Unable to open file: ..Hy_autotestresourcesuperappapkADBKeyboard.apk Consider using a file under /data/local/tmp/ Error: Can't open file: ..Hy_autotestresourcesuperappapkADBKeyboard.apk Exception occurred while executing 'install': java.lang.IllegalArgumentException: Error: Can't open file: ..Hy_autotestresourcesuperappapkADBKeyboard.apk at com.android.server.pm.PackageManagerShellCommand.setParamsSize(PackageManagerShellCommand.java:604) at com.android.server.pm.PackageManagerShellCommand.doRunInstall(PackageManagerShellCommand.java:1427) at com.android.server.pm.PackageManagerShellCommand.runInstall(PackageManagerShellCommand.java:1393) at com.android.server.pm.PackageManagerShellCommand.onCommand(PackageManagerShellCommand.java:209) at com.android.modules.utils.BasicShellCommandHandler.exec(BasicShellCommandHandler.java:97) at android.os.ShellCommand.exec(ShellCommand.java:38) at com.android.server.pm.PackageManagerService.onShellCommand(PackageManagerService.java:29441) at android.os.Binder.shellCommand(Binder.java:979) at android.os.Binder.onTransact(Binder.java:846) at android.content.pm.IPackageManager$Stub.onTransact(IPackageManager.java:5090) at com.android.server.pm.PackageManagerService.onTransact(PackageManagerService.java:10094) at com.android.server.pm.HwPackageManagerService.onTransact(HwPackageManagerService.java:535) at android.os.Binder.execTransactInternal(Binder.java:1216) at android.os.Binder.execTransact(Binder.java:1175) Warning: adb -s BB5YLA255PB00104 shell "pm install ..\Hy_autotest\resource\superapp\apk\ADBKeyboard.apk" failed
07-25
FO: Starting Servlet Engine: Apache Tomcat/7.0.59 Sep 03, 2025 1:28:08 PM org.apache.catalina.startup.HostConfig deployDirectory INFO: Deploying web application directory /data/EnterpriseApp/TomcatApp/tomcat-7.0-bdcs_hande/webapps/bdcs Sep 03, 2025 1:28:09 PM org.apache.catalina.startup.ContextConfig processAnnotationsJar SEVERE: Unable to process Jar entry [META-INF/versions/9/module-info.class] from Jar [jar:file:/data/EnterpriseApp/TomcatApp/tomcat-7.0-bdcs_hande/webapps/bdcs/WEB-INF/lib/commons-net-3.10.0.jar!/] for annotations org.apache.tomcat.util.bcel.classfile.ClassFormatException: Invalid byte tag in constant pool: 19 at org.apache.tomcat.util.bcel.classfile.Constant.readConstant(Constant.java:97) at org.apache.tomcat.util.bcel.classfile.ConstantPool.<init>(ConstantPool.java:55) at org.apache.tomcat.util.bcel.classfile.ClassParser.readConstantPool(ClassParser.java:177) at org.apache.tomcat.util.bcel.classfile.ClassParser.parse(ClassParser.java:85) at org.apache.catalina.startup.ContextConfig.processAnnotationsStream(ContextConfig.java:2089) at org.apache.catalina.startup.ContextConfig.processAnnotationsJar(ContextConfig.java:1965) at org.apache.catalina.startup.ContextConfig.processAnnotationsUrl(ContextConfig.java:1931) at org.apache.catalina.startup.ContextConfig.processAnnotations(ContextConfig.java:1916) at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1330) at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:889) at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:386) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117) at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5412) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:649) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1245) at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1895) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) Sep 03, 2025 1:28:10 PM org.apache.catalina.startup.TaglibUriRule body INFO: TLD skipped. URI: webwork is already defined log4j:ERROR setFile(null,true) call failed. java.io.FileNotFoundException: /logs/bdcs.log (No such file or directory) at java.io.FileOutputStream.open0(Native Method) at java.io.FileOutputStream.open(FileOutputStream.java:270) at java.io.FileOutputStream.<init>(FileOutputStream.java:213) at java.io.FileOutputStream.<init>(FileOutputStream.java:133) at org.apache.log4j.FileAppender.setFile(FileAppender.java:272) at org.apache.log4j.FileAppender.activateOptions(FileAppender.java:151) at org.apache.log4j.DailyRollingFileAppender.activateOptions(DailyRollingFileAppender.java:206) at org.apache.log4j.config.PropertySetter.activate(PropertySetter.java:247) at org.apache.log4j.config.PropertySetter.setProperties(PropertySetter.java:123) at org.apache.log4j.config.PropertySetter.setProperties(PropertySetter.java:87) at org.apache.log4j.PropertyConfigurator.parseAppender(PropertyConfigurator.java:645) at org.apache.log4j.PropertyConfigurator.parseCategory(PropertyConfigurator.java:603) at org.apache.log4j.PropertyConfigurator.configureRootCategory(PropertyConfigurator.java:500) at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:406) at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:432) at org.apache.log4j.helpers.OptionConverter.selectAndConfigure(OptionConverter.java:460) at org.apache.log4j.LogManager.<clinit>(LogManager.java:113) at org.apache.log4j.Category.getInstance(Category.java:530) at org.apache.commons.logging.impl.Log4jFactory.getInstance(Log4jFactory.java:140) at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:257) at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:390) at com.opensymphony.clickstream.ClickstreamListener.<clinit>(ClickstreamListener.java:24) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:422) at java.lang.Class.newInstance(Class.java:442) at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:116) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4932) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5524) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:649) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1245) at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1895) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) log4j:ERROR Either File or DatePattern options are not set for appender [bdcs]. 09-03 13:28:11.438 INFO [ContextLoader.java:142] Root WebApplicationContext: initialization started 09-03 13:28:11.457 INFO [XmlBeanDefinitionReader.java:119] Loading XML bean definitions from class path resource [com/smics/apps/sso/test_sso_context.xml] 09-03 13:28:11.479 INFO [XmlBeanDefinitionReader.java:119] Loading XML bean definitions from class path resource [com/smics/apps/exporthr/test_exporthr_context.xml] 09-03 13:28:11.486 INFO [XmlBeanDefinitionReader.java:119] Loading XML bean definitions from class path resource [com/smics/apps/prodtech/prod_prodtech_context.xml] 09-03 13:28:11.500 INFO [XmlBeanDefinitionReader.java:119] Loading XML bean definitions from class path resource [com/smics/apps/bdcs/mail_content.xml] 09-03 13:28:11.501 ERROR [ContextLoader.java:172] Context initialization failed org.springframework.beans.factory.BeanDefinitionStoreException: IOException parsing XML document from class path resource [com/smics/apps/bdcs/mail_content.xml]; nested exception is java.io.FileNotFoundException: class path resource [com/smics/apps/bdcs/mail_content.xml] cannot be opened because it does not exist java.io.FileNotFoundException: class path resource [com/smics/apps/bdcs/mail_content.xml] cannot be opened because it does not exist at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:127) at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:131) at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:99) at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:114) at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:82) at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:87) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:262) at org.springframework.web.context.support.AbstractRefreshableWebApplicationContext.refresh(AbstractRefreshableWebApplicationContext.java:131) at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:224) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:150) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:48) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5016) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5524) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:649) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1245) at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1895) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745)什么原因
最新发布
09-04
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