Android直接跳转activity报错

每次运行总是报错，能进入软件，但跳转时报错

 package com.text.Mark1;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.view.Window;
import android.view.WindowManager;

public class welcome extends Activity{

    @Override
    protected void onCreate(Bundle savedInstanceState){
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);//去掉标题栏
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                        WindowManager.LayoutParams.FLAG_FULLSCREEN);//全屏显示
        setContentView(R.layout.welcome2);

        new Handler().postDelayed(new Runnable(){

            @Override
            public void run(){
                Intent intent = new Intent (welcome.this,login.class);           
                startActivity(intent);           
                welcome.this.finish();
            }
        }, 1000);

    }
}

12-26 09:09:33.025: E/AndroidRuntime(555): FATAL EXCEPTION: main
12-26 09:09:33.025: E/AndroidRuntime(555): android.content.ActivityNotFoundException: Unable to find explicit activity class {com.text.Mark1/com.text.Mark1.login}; have you declared this activity in your AndroidManifest.xml?
12-26 09:09:33.025: E/AndroidRuntime(555): at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1508)
12-26 09:09:33.025: E/AndroidRuntime(555): at android.app.Instrumentation.execStartActivity(Instrumentation.java:1384)
12-26 09:09:33.025: E/AndroidRuntime(555): at android.app.Activity.startActivityForResult(Activity.java:3190)
12-26 09:09:33.025: E/AndroidRuntime(555): at android.app.Activity.startActivity(Activity.java:3297)
12-26 09:09:33.025: E/AndroidRuntime(555): at com.text.Mark1.welcome$1.run(welcome.java:25)
12-26 09:09:33.025: E/AndroidRuntime(555): at android.os.Handler.handleCallback(Handler.java:605)
12-26 09:09:33.025: E/AndroidRuntime(555): at android.os.Handler.dispatchMessage(Handler.java:92)
12-26 09:09:33.025: E/AndroidRuntime(555): at android.os.Looper.loop(Looper.java:137)
12-26 09:09:33.025: E/AndroidRuntime(555): at android.app.ActivityThread.main(ActivityThread.java:4340)
12-26 09:09:33.025: E/AndroidRuntime(555): at java.lang.reflect.Method.invokeNative(Native Method)
12-26 09:09:33.025: E/AndroidRuntime(555): at java.lang.reflect.Method.invoke(Method.java:511)
12-26 09:09:33.025: E/AndroidRuntime(555): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
12-26 09:09:33.025: E/AndroidRuntime(555): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
12-26 09:09:33.025: E/AndroidRuntime(555): at dalvik.system.NativeStart.main(Native Method)

have you declared this activity in your AndroidManifest.xml?

检查welcome,login这两个activity在清单文件里是否注册了。

检查下.login的路径是不是在com.text.Mark1下

清理一下缓存,清单文件Activity 的 android:name 换成绝对路径.

看下你的AndroidManifest配置文件，应该是login没有在AndroidManifest中注册

have you declared this activity in your AndroidManifest.xml?
你没有在Manifest文件中注册这个activity吧！导致跳转失败

have you declared this activity in your AndroidManifest.xml?

从报错来看是login这个Activity没有在清单文件中注册，把注册的改成全路径试试

从报错来看是login这个Activity没有在清单文件中注册，把Activity的注册改成全路径试试

 <activity android:name="包名.login"/> 

1.清单文件检查下
2.类名建议用大写字母开头，改下试试，android经常有莫名错误

清单文件中没有配置那个activity或者路径错误

你的登陆界面没注册 注册下就好了