android studio连接夜神模拟器 打开app提示屡次停止运行

在android studio跑完代码，连接到夜神模拟器，点击app却提示已停止运行不知道是什么原因

在这里看一下闪退的日志

那说明你的程序崩了，看下你的logcat报错日志吧

报错日志
2022-04-09 16:56:36.170 3819-3819/? I/art: Late-enabling -Xcheck:jni
2022-04-09 16:56:36.170 3819-3819/? W/art: Unexpected CPU variant for X86 using defaults: x86
2022-04-09 16:56:36.217 3819-3819/? W/System: ClassLoader referenced unknown path: /data/app/com.example.zya-1/lib/x86
2022-04-09 16:56:36.220 3819-3826/? E/art: Failed sending reply to debugger: Broken pipe
2022-04-09 16:56:36.220 3819-3826/? I/art: Debugger is no longer active
2022-04-09 16:56:36.220 3819-3826/? I/art: Starting a blocking GC Instrumentation
2022-04-09 16:56:36.241 3819-3819/? W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter androidx.vectordrawable.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable
2022-04-09 16:56:36.244 3819-3819/? D/AndroidRuntime: Shutting down VM

--------- beginning of crash

2022-04-09 16:56:36.244 3819-3819/? E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.zya, PID: 3819
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.zya/com.example.zya.MainActivity}: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2668)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2729)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1480)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6176)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:891)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:781)
Caused by: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.
at androidx.appcompat.app.AppCompatDelegateImpl.createSubDecor(AppCompatDelegateImpl.java:555)
at androidx.appcompat.app.AppCompatDelegateImpl.ensureSubDecor(AppCompatDelegateImpl.java:518)
at androidx.appcompat.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:466)
at androidx.appcompat.app.AppCompatActivity.setContentView(AppCompatActivity.java:140)
at com.example.zya.MainActivity.onCreate(MainActivity.java:12)
at android.app.Activity.performCreate(Activity.java:6692)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1118)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2621)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2729) 
at android.app.ActivityThread.-wrap12(ActivityThread.java) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1480) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:154) 
at android.app.ActivityThread.main(ActivityThread.java:6176) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:891) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:781)