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安卓报错：java.lang.RuntimeException: Unable to start activity ComponentInfo—getSupportActionBar()为null

报错信息： E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.edm, PID: 16919 java.lang.RuntimeException...: Unable to start activity ComponentInfo{ com.example.edm/com.example.edm.StudentActivity.TimeTable.ui.editcourse.EditActivity...com.example.edm.StudentActivity.TimeTable.ui.editcourse.EditActivity.onCreate(EditActivity.java:75) at android.app.Activity.performCreate...(Activity.java:8086) at android.app.Activity.performCreate(Activity.java:8074) at android.app.Instrumentation.callActivityOnCreate...解决方案：检查AndroidManifest.xml文件中相关Activity的theme是否为: android:theme="@style/Theme.AppCompat.Light.NoActionBar

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Android之平时遇见的异常和错误总结（不断更新）「建议收藏」

点击跳转到教程安卓错误经验累积 1、当出现下面错误时候 08-21 03:43:16.679: E/AndroidRuntime(1087): java.lang.RuntimeException...: Unable to start activity ComponentInfo{com.example.fragment/com.example.fragment.MainActivity}: android.view.InflateException...mTabWeixin.setOnClickListener((OnClickListener) this); 这样写会报错 08-21 04:06:16.920: E/AndroidRuntime(1274): java.lang.RuntimeException...: Unable to start activity ComponentInfo{com.example.fragment/com.example.fragment.MainActivity}: java.lang.ClassCastException

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Android中各种Exception错误小结

问题1： java.lang.RuntimeException: Unable to start activity ComponentInfo{com.xxx.xxx/com.xxx.xx.activity.login.XXXX...: Unable to start activity ComponentInfo{com.xxx.xxx/com.xxx.xx.activity.login.XXXX}: java.lang.NullPointerException...问题2：运行时崩溃异常如下： java.lang.RuntimeException: Unable to start activity ComponentInfo{com.xx.xx/com.xxx.xx.xx.login.xxx...if (camerList == null || camerList.size() == 0) { return null; //没有摄像头 } 问题3： java.lang.RuntimeException...: Unable to start activity ComponentInfo{com.xxx.xxx/com.xxx.xxx.activity.xx.xx}: java.lang.IllegalArgumentException

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【Android 安全】DEX 加密 ( Proguard 混淆 | 将混淆后的报错信息转为原始报错信息 | retrace.bat 命令执行目录 | 暴露更少信息 )

E/AndroidRuntime: FATAL EXCEPTION: main Process: kim.hsl.handler, PID: 28142 java.lang.RuntimeException...: Unable to start activity ComponentInfo{kim.hsl.handler/kim.hsl.handler.MainActivity}: java.lang.NullPointerException...E/AndroidRuntime: FATAL EXCEPTION: main Process: kim.hsl.handler, PID: 28142 java.lang.RuntimeException...: Unable to start activity ComponentInfo{kim.hsl.handler/kim.hsl.handler.MainActivity}: java.lang.NullPointerException...: Unable to start activity ComponentInfo{kim.hsl.handler/kim.hsl.handler.MainActivity}: java.lang.NullPointerException

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Nacos 启动报错 Unable to start web server……Unable to start embedded Tomcat

报错内容如下 org.springframework.context.ApplicationContextException: Unable to start web server; nested exception...is org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat at...to start embedded Tomcat at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize...spring cloud alibaba from fhadmin.cn）因为如果直接在bin目录下用鼠标双击startup.cmd启动的话，默认的是以cluster(集群)的方式启动，直接启动第一个会报Unable...to start embedded Tomcat错误，改成单机启动：用记事本打开bin目录下查看startup.cmd @echo off rem Copyright 1999-2018 Alibaba

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Flutter项目安卓运行时闪退解决方案

自带的管道来实现只输出我们需要的软件输出的信息. adb Logcat | grep '包名' 在查询运行日志后, 我发现, 报错信息为 00-00 00:00:00.000 7754 7754 E AndroidRuntime: java.lang.RuntimeException...: Unable to instantiate activity ComponentInfo{cn.timemail.xsot/cn.timemai.xsot.MainActivity}: java.lang.ClassNotFoundException.../lib/arm64-v8a, /system/lib64, /system_ext/lib64]] 这里的包名也就不隐藏了, 可以看到错误信息为java.lang.RuntimeException:...Unable to instantiate activity ComponentInfo 查询过后, 发现是因为Flutter的默认包名好像是 com.example.flutter还是什么,但是我讲其直接修改为了

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Unable to start the daemon process

AndroidStudio（3.0.1） jdk(1.8.0) Unable to start the daemon process.

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【Kotlin 协程】Flow 异步流 ⑦ ( 调用 FlowCollector#emit 发射元素时自动执行 Flow 流的取消检测 | 启用检测 Flow 流的取消cancellable函数 )

kim.hsl.coroutine E/AndroidRuntime: FATAL EXCEPTION: main Process: kim.hsl.coroutine, PID: 29409 java.lang.RuntimeException...: Unable to start activity ComponentInfo{kim.hsl.coroutine/kim.hsl.coroutine.MainActivity}: kotlinx.coroutines.JobCancellationException...kim.hsl.coroutine E/AndroidRuntime: FATAL EXCEPTION: main Process: kim.hsl.coroutine, PID: 30105 java.lang.RuntimeException...: Unable to start activity ComponentInfo{kim.hsl.coroutine/kim.hsl.coroutine.MainActivity}: kotlinx.coroutines.JobCancellationException...: Unable to start activity ComponentInfo{kim.hsl.coroutine/kim.hsl.coroutine.MainActivity}: kotlinx.coroutines.JobCancellationException

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【错误记录】Android Studio 编译报错 ( AppCompat does not support the current theme features )

com.example.host E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.host, PID: 30481 java.lang.RuntimeException...: Unable to start activity ComponentInfo{com.example.host/com.example.host.MainActivity}: java.lang.IllegalArgumentException...195) at com.example.host.MainActivity.onCreate(MainActivity.java:21) at android.app.Activity.performCreate...(Activity.java:7144) at android.app.Activity.performCreate(Activity.java:7135) at android.app.Instrumentation.callActivityOnCreate

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【错误记录】Android 中调用 Process 命令行执行指令 ( java.lang.IllegalThreadStateException: process hasn‘t exited )

/kim.hsl.a7_zip E/AndroidRuntime: FATAL EXCEPTION: main Process: kim.hsl.a7_zip, PID: 29512 java.lang.RuntimeException...: Unable to start activity ComponentInfo{kim.hsl.a7_zip/kim.hsl.a7_zip.MainActivity}: java.lang.IllegalThreadStateException...MainActivity.kt:115) at kim.hsl.a7_zip.MainActivity.onCreate(MainActivity.kt:24) at android.app.Activity.performCreate...(Activity.java:7144) at android.app.Activity.performCreate(Activity.java:7135) at android.app.Instrumentation.callActivityOnCreate

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Binary XML file line #19: Attempt to invoke virtual method boolean java.lang.String.equals(java....

Process: com.lwp.justtest, PID: 6054 java.lang.RuntimeException...: Unable to start activity ComponentInfo{com.lwp.justtest/com.lwp.justtest.MainActivity}: android.view.InflateException...com.lwp.justtest.MainActivity.onCreate(MainActivity.java:21) at android.app.Activity.performCreate...(Activity.java:6662) at android.app.Instrumentation.callActivityOnCreate

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Unable to start embedded Tomcat 问题

initialization - cancelling refresh attempt: org.springframework.context.ApplicationContextException: Unable...to start web server; nested exception is org.springframework.boot.web.server.WebServerException: Unable...to start web server; nested exception is org.springframework.boot.web.server.WebServerException: Unable...to start embedded Tomcat at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh...to start embedded Tomcat at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize

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android的正则实现不支持在逆序环视中的无限匹配

\\d{1,10})e 错误堆栈： Uncaught handler: thread main exiting due to uncaught exception java.lang.RuntimeException...: Unable to start activity ComponentInfo{freish.activity/fr...java.util.regex.Pattern.compile(Pattern.java:179) at java.util.regex.Pattern.compile(Pattern.java:179) at freish.activity.RegexActivity.onCreate...(RegexActivity.java:28) at freish.activity.RegexActivity.onCreate(RegexActivity.java:28) at android.app.Instrumentation.callActivityOnCreate

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8-14 Android学习ing

1.异常java.lang.RuntimeException: Unable to instantiate activity ComponentInfo 解决方法http://www.linuxidc.com

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Android中一个简单有用的发现性能问题的方法

onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main...1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 java.lang.RuntimeException: Unable to start activity...ComponentInfo{com.droidyue.checkthreadsample/com.droidyue.checkthreadsample.MainActivity}: java.lang.RuntimeException...(Activity.java:6127) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java...Method Tracing，需要刻意并时不时进行设置start和stop操作，文章的方法，可以说是一劳永逸。检测会不会有性能问题理论上是不会的，通常这个检测的代价要远远比耗时任务要小很多。

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【错误记录】Android 应用运行报错 ( You need to use a Theme.AppCompat theme (or descendant) with this activity. )

com.example.plugin_hook E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.plugin_hook, PID: 26338 java.lang.RuntimeException...: Unable to start activity ComponentInfo{com.example.plugin_hook/com.example.plugin_hook.MainActivity...java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity...(Activity.java:7144) at android.app.Activity.performCreate(Activity.java:7135) at android.app.Instrumentation.callActivityOnCreate...class MainActivity extends Activity {

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【Android 安全】DEX 加密 ( Proguard 混淆 | 混淆后的报错信息 | Proguard 混淆映射文件 mapping.txt )

E/AndroidRuntime: FATAL EXCEPTION: main Process: kim.hsl.handler, PID: 28142 java.lang.RuntimeException...: Unable to start activity ComponentInfo{kim.hsl.handler/kim.hsl.handler.MainActivity}: java.lang.NullPointerException...Handler.java:30) at kim.hsl.handler.MainActivity.onCreate(MainActivity.kt:24) at android.app.Activity.performCreate...(Activity.java:8085) at android.app.Activity.performCreate(Activity.java:8073) at android.app.Instrumentation.callActivityOnCreate

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【错误记录】Android 中使用 Room 框架访问数据库报错 ( cannot find implementation for xx.xxDatabase. xxDatabase_Impl )

15:22:18.829 E/AndroidRuntime: FATAL EXCEPTION: main Process: kim.hsl.roomdemo, PID: 27608 java.lang.RuntimeException...: Unable to start activity ComponentInfo{kim.hsl.roomdemo/kim.hsl.roomdemo.MainActivity}: java.lang.RuntimeException...RuntimeInit.java:586) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1204) Caused by: java.lang.RuntimeException...StudentDatabase.kt:29) at kim.hsl.roomdemo.MainActivity.onCreate(MainActivity.kt:18) at android.app.Activity.performCreate...(Activity.java:8488) at android.app.Activity.performCreate(Activity.java:8461) at android.app.Instrumentation.callActivityOnCreate

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8-16Android 学习ing

setTransactionSuccessful()设置事务标志为True 2.Cursor http://www.2cto.com/kf/201109/103163.html 3.使用SimpleCursorAdapter适配器时出现的问题：java.lang.RuntimeException...: Unable to start activity ComponentInfo{com.example.db/com.example.db.MainActivity}: java.lang.IllegalArgumentException

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【Kotlin 协程】Flow 流异常处理 ( 收集元素异常处理 | 使用 try...catch 代码块捕获处理异常 | 发射元素时异常处理 | 使用 Flow#catch 函数捕获处理异常 )

Process: kim.hsl.coroutine, PID: 6476 java.lang.RuntimeException...: Unable to start activity ComponentInfo{kim.hsl.coroutine/kim.hsl.coroutine.MainActivity}: java.lang.IllegalStateException...(Activity.java:7144) at android.app.Activity.performCreate...Process: kim.hsl.coroutine, PID: 11490 java.lang.RuntimeException...: Unable to start activity ComponentInfo{kim.hsl.coroutine/kim.hsl.coroutine.MainActivity}: java.io.IOException

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点击加载更多

安卓报错：java.lang.RuntimeException: Unable to start activity ComponentInfo—getSupportActionBar()为null

Android之平时遇见的异常和错误总结（不断更新）「建议收藏」

Android中各种Exception错误小结

【Android 安全】DEX 加密 ( Proguard 混淆 | 将混淆后的报错信息转为原始报错信息 | retrace.bat 命令执行目录 | 暴露更少信息 )

Nacos 启动报错 Unable to start web server……Unable to start embedded Tomcat

Flutter项目安卓运行时闪退解决方案

Unable to start the daemon process

【Kotlin 协程】Flow 异步流 ⑦ ( 调用 FlowCollector#emit 发射元素时自动执行 Flow 流的取消检测 | 启用检测 Flow 流的取消cancellable函数 )

【错误记录】Android Studio 编译报错 ( AppCompat does not support the current theme features )

【错误记录】Android 中调用 Process 命令行执行指令 ( java.lang.IllegalThreadStateException: process hasn‘t exited )

Binary XML file line #19: Attempt to invoke virtual method boolean java.lang.String.equals(java....

Unable to start embedded Tomcat 问题

android的正则实现不支持在逆序环视中的无限匹配

8-14 Android学习ing

Android中一个简单有用的发现性能问题的方法

【错误记录】Android 应用运行报错 ( You need to use a Theme.AppCompat theme (or descendant) with this activity. )

【Android 安全】DEX 加密 ( Proguard 混淆 | 混淆后的报错信息 | Proguard 混淆映射文件 mapping.txt )

【错误记录】Android 中使用 Room 框架访问数据库报错 ( cannot find implementation for xx.xxDatabase. xxDatabase_Impl )

8-16Android 学习ing

【Kotlin 协程】Flow 流异常处理 ( 收集元素异常处理 | 使用 try...catch 代码块捕获处理异常 | 发射元素时异常处理 | 使用 Flow#catch 函数捕获处理异常 )

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