Comm库异常：java.lang.RuntimeException：javax.comm.NoSuchPortException（commdao.java）

25-02-15 19

想了解Comm库异常：java.lang.RuntimeException：javax.comm.NoSuchPortException的新动态吗？本文将为您提供详细的信息，我们还将为您解答关于com

想了解Comm库异常：java.lang.RuntimeException：javax.comm.NoSuchPortException的新动态吗？本文将为您提供详细的信息，我们还将为您解答关于commdao.java的相关问题，此外，我们还将为您介绍关于Android FATAL EXCEPTION MAIN：java.lang.RuntimeException：无法启动活动ComponentInfo、Android java.lang.RuntimeException：无法实例化活动ComponentInfo … java.lang.NullPointerException、android – java.lang.RuntimeException无法实例化服务：java.lang.NullPointerException、android – java.lang.RuntimeException：无法实例化活动ComponentInfo / java.lang.ClassNotFoundException的新知识。

本文目录一览：

Comm库异常：java.lang.RuntimeException：javax.comm.NoSuchPortException（commdao.java）
Android FATAL EXCEPTION MAIN：java.lang.RuntimeException：无法启动活动ComponentInfo
Android java.lang.RuntimeException：无法实例化活动ComponentInfo … java.lang.NullPointerException
android – java.lang.RuntimeException无法实例化服务：java.lang.NullPointerException
android – java.lang.RuntimeException：无法实例化活动ComponentInfo / java.lang.ClassNotFoundException

Comm库异常：java.lang.RuntimeException：javax.comm.NoSuchPortException（commdao.java）

如何解决Comm库异常：java.lang.RuntimeException：javax.comm.NoSuchPortException？

自两个星期以来，我一直在尝试启动网关服务，并且我引用的是以下提到的代码。说实话，我对此并没有太多想法，

.toPromise().then()

它给我的错误是NoSuchPortException。经检查，我提到的端口已存在，并且已与系统连接。我在另一个系统中运行jar文件。我不明白是什么原因

 public void readLastRecievedMessage(final String modem,final String port,final int bitrate,final String donglenum) throws SMSLibException,TimeoutException,GatewayException,IOException,InterruptedException{
       new Thread(new Runnable() {
      
        public void run() {
       try
            {
                    List<InboundMessage> msgList;
                    SerialModemGateway gateway = new SerialModemGateway(modem,port,bitrate,"","");
                    gateway.setProtocol(AGateway.Protocols.PDU);
                    gateway.setInbound(true);
                    gateway.setoutbound(true);
                    gateway.setSimPin("0000");
                    String status = Service.getInstance().getServiceStatus().toString();
                    if(status=="STARTED"){}else{
                        Service.getInstance().addGateway(gateway);
                        Service.getInstance().startService();
                    }
                     System.out.println("Modem information:");
                    System.out.println("  Manufacturer: " + gateway.getManufacturer());
                    System.out.println("  Model: " + gateway.getModel());
                    System.out.println("  Serial No: " + gateway.getSerialNo());
                    System.out.println("  SIM imsI: " + gateway.getimsi());
                    System.out.println("  Signal Level: " + gateway.getSignalLevel() + " dBm");
                    System.out.println("  Battery Level: " + gateway.getbatterylevel() + "%");
                    Service.getInstance().getKeyManager().registerKey(donglenum,new AESKey(new SecretKeySpec("0011223344556677".getBytes(),"AES")));
                    msgList = new ArrayList<InboundMessage>();
                    Service.getInstance().readMessages(msgList,InboundMessage.MessageClasses.ALL);
                    //get the last recieved message
                    int i = (msgList.size())-1;
                    //print the message
                    System.out.println(msgList.get(i).getText());
            }
            catch (Exception e)
            {
                
                    e.printstacktrace();
            }
       
           }
            }).start();
   }

解决方法

暂无找到可以解决该程序问题的有效方法，小编努力寻找整理中！

如果你已经找到好的解决方法，欢迎将解决方案带上本链接一起发送给小编。

小编邮箱:dio#foxmail.com (将#修改为@）

Android FATAL EXCEPTION MAIN：java.lang.RuntimeException：无法启动活动ComponentInfo

我是编程android的nubie,我知道这里有4m是很多页面为我的问题打乱解决方案,但现在我输了2天仍然没有得到解决方案.请帮我！

首先是我的错误：

01-02 11:08:27.314: D/AndroidRuntime(1045): Shutting down VM
01-02 11:08:27.314: W/dalvikvm(1045): threadid=1: thread exiting with uncaught exception (group=0x409e61f8)
01-02 11:08:27.324: E/AndroidRuntime(1045): FATAL EXCEPTION: main
01-02 11:08:27.324: E/AndroidRuntime(1045): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.wifiscan/com.example.wifiscan.activity_wifi_scan}: java.lang.classNotFoundException: com.example.wifiscan.activity_wifi_scan
01-02 11:08:27.324: E/AndroidRuntime(1045):     at android.app.ActivityThread.performlaunchActivity(ActivityThread.java:1880)
01-02 11:08:27.324: E/AndroidRuntime(1045):     at  android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
01-02 11:08:27.324: E/AndroidRuntime(1045):     at android.app.ActivityThread.access$600(ActivityThread.java:123)
01-02 11:08:27.324: E/AndroidRuntime(1045):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
01-02 11:08:27.324: E/AndroidRuntime(1045):     at android.os.Handler.dispatchMessage(Handler.java:99)
01-02 11:08:27.324: E/AndroidRuntime(1045):     at android.os.Looper.loop(Looper.java:137)
01-02 11:08:27.324: E/AndroidRuntime(1045):     at android.app.ActivityThread.main(ActivityThread.java:4424)
01-02 11:08:27.324: E/AndroidRuntime(1045):     at java.lang.reflect.Method.invokeNative(Native Method)
01-02 11:08:27.324: E/AndroidRuntime(1045):     at java.lang.reflect.Method.invoke(Method.java:511)
01-02 11:08:27.324: E/AndroidRuntime(1045):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
01-02 11:08:27.324: E/AndroidRuntime(1045):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
01-02 11:08:27.324: E/AndroidRuntime(1045):     at dalvik.system.NativeStart.main(Native Method)
01-02 11:08:27.324: E/AndroidRuntime(1045): Caused by: java.lang.classNotFoundException: com.example.wifiscan.activity_wifi_scan
01-02 11:08:27.324: E/AndroidRuntime(1045):     at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
01-02 11:08:27.324: E/AndroidRuntime(1045):     at java.lang.classLoader.loadClass(ClassLoader.java:501)
01-02 11:08:27.324: E/AndroidRuntime(1045):     at java.lang.classLoader.loadClass(ClassLoader.java:461)
01-02 11:08:27.324: E/AndroidRuntime(1045):     at android.app.Instrumentation.newActivity(Instrumentation.java:1023)
01-02 11:08:27.324: E/AndroidRuntime(1045):     at android.app.ActivityThread.performlaunchActivity(ActivityThread.java:1871)
01-02 11:08:27.324: E/AndroidRuntime(1045):     ... 11 more

我的WifiScan：

 public class WifiScan extends Activity implements OnClickListener {      
     WifiManager wifi;       
     ListView lv;
     TextView textStatus;
     Button buttonScan;
     int size = 0;
     List<ScanResult> results;

     String ITEM_KEY = "key";
     ArrayList<HashMap<String, String>> arraylist = new ArrayList<HashMap<String, String>>();
     SimpleAdapter adapter;

     /* Called when the activity is first created. */
     @Override
     public void onCreate(Bundle savedInstanceState) 
     {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_wifi_scan);

         buttonScan = (Button) findViewById(R.id.scan);
         buttonScan.setonClickListener(this);
         lv = (ListView)findViewById(R.id.list);

         wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);
         if (wifi.isWifiEnabled() == false)
         {
             Toast.makeText(getApplicationContext(), "wifi is disabled..making it enabled", Toast.LENGTH_LONG).show();
             wifi.setWifiEnabled(true);
         }   
         wifi.startScan(); //js dopisal
      //   this.adapter = new SimpleAdapter(WiFiDemo.this, arraylist, R.layout.row, new String[] { ITEM_KEY }, new int[] { R.id.list_value });
         lv.setAdapter(this.adapter);

              registerReceiver(new broadcastReceiver()
         {
             @Override
             public void onReceive(Context c, Intent intent) 
             {
                results = wifi.getScanResults();
                size = results.size();
             }
         }, new IntentFilter(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION));                    
     }

     public void onClick(View view) 
     {
         arraylist.clear();          
         wifi.startScan();

              Toast.makeText(this, "Scanning...." + size, Toast.LENGTH_SHORT).show();
         try 
         {
             size = size - 1;
             while (size >= 0) 
             {   
                 HashMap<String, String> item = new HashMap<String, String>();                       
                 item.put(ITEM_KEY, results.get(size).SSID + "  " + results.get(size).capabilities);

                 arraylist.add(item);     
                size--;
                 adapter.notifyDataSetChanged();                 
             } 
         }
         catch (Exception e)
         { }         
     }    
 }

我的activity_wifi_scan.xml文件：

<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
        android:id="@+id/TableLayout1"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:paddingBottom="@dimen/activity_vertical_margin"
        android:paddingLeft="@dimen/activity_horizontal_margin"
        android:paddingRight="@dimen/activity_horizontal_margin"
        android:paddingTop="@dimen/activity_vertical_margin"
        tools:context=".WifiScan" >

    <Button    
        android:id="@+id/scan"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="scan"
        android:text="SCAN" />

    <ListView
        android:id="@+id/list"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >
    </ListView>

</TableLayout>

和我的AndroidManifest文件：

<?xml version="1.0" encoding="utf-8"?>
      <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.example.wifiscan"
     android:versionCode="1"
          android:versionName="1.0" >

        <uses-premission android:name="android.permission.ACCESS_WIFI_STATE"/>
         <uses-permission android:name="android.permission.WAKE_LOCK"/>
        <uses-permission android:name="android.permission.INTERNET"/>
     <uses-permission android:name="android.permission.CHANGE_WIFI_STATE"/>
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
     <uses-permission android:name="android.permission.INTERNET"></uses-permission>
     <uses-permission android:name="android.permission.CHANGE_WIFI_STATE"></uses-permission>
     <uses-permission android:name="android.permission.READ_PHONE_STATE"> </uses-permission>
     <uses-permission android:name="android.permission.INTERNET"> </uses-permission>

     <uses-sdk
          android:minSdkVersion="8"
         android:targetSdkVersion="17" />

     <application
         android:allowBackup="true"
         android:icon="@drawable/ic_launcher"
         android:label="@string/app_name"
         android:theme="@style/AppTheme" >

     <activity android:name=".activity_wifi_scan">
         <intent-filter>
                 <action android:name="android.intent.action.MAIN"></action>
                 <category android:name="android.intent.category.LAUNCHER"></category>
                 <data />
         </intent-filter>
     </activity>

     <receiver android:name=".activity_wifi_scan">
         <intent-filter>
             <action android:name="android.intent.action.MAIN" />
             <category android:name="android.intent.category.LAUNCHER"/>
            <action android:name="android.net.wifi.WIFI_STATE_CHANGED"/>
         </intent-filter>
     </receiver>        
     </application>
 </manifest>

解决方法:

您的活动名称是WifiScan但您已将其声明为.activity_wifi_scan更改它并重试.

更改<活动>要素：

<activity android:name=".WifiScan">
         <intent-filter>
                 <action android:name="android.intent.action.MAIN"></action>
                 <category android:name="android.intent.category.LAUNCHER"></category>
                 <data />
         </intent-filter>
     </activity>

Android java.lang.RuntimeException：无法实例化活动ComponentInfo … java.lang.NullPointerException

出于某种原因,每次尝试启动我的应用程序时,我都会出现以下错误：

Unable to instantiate activity ComponentInfo{com.example.lifeahead/com.example.lifeahead.MainActivity}:java.lang.NullPointerException

我检查了清单文件,并添加了所有活动.

我启动应用程序时使用的唯一方法是：

private void logIn(){
    Button logIn = (Button) findViewById(R.id.login);
    logIn.setonClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            // Todo Auto-generated method stub
            Intent loginIntent = new Intent(MainActivity.this, HomeActivity.class);
            loginIntent.putExtra("cmUN", cmUN);
            loginIntent.putExtra("cmPW", cmPW);
            startActivity(loginIntent);
        }
    });
}

这是onCreate：

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    if (savedInstanceState == null) {
        getSupportFragmentManager().beginTransaction()
                .add(R.id.container, new PlaceholderFragment()).commit();
    }

    logIn();
}

完整日志：

/AndroidRuntime(1607): FATAL EXCEPTION: main
E/AndroidRuntime(1607): Process: com.example.lifeahead, PID: 1607
E/AndroidRuntime(1607): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.lifeahead/com.example.lifeahead.MainActivity}: java.lang.NullPointerException
E/AndroidRuntime(1607):     at android.app.ActivityThread.performlaunchActivity(ActivityThread.java:2121)
E/AndroidRuntime(1607):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
E/AndroidRuntime(1607):     at android.app.ActivityThread.access$800(ActivityThread.java:135)
E/AndroidRuntime(1607):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
E/AndroidRuntime(1607):     at android.os.Handler.dispatchMessage(Handler.java:102)
E/AndroidRuntime(1607):     at android.os.Looper.loop(Looper.java:136)
E/AndroidRuntime(1607):     at android.app.ActivityThread.main(ActivityThread.java:5017)
E/AndroidRuntime(1607):     at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime(1607):     at java.lang.reflect.Method.invoke(Method.java:515)
E/AndroidRuntime(1607):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
E/AndroidRuntime(1607):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
E/AndroidRuntime(1607):     at dalvik.system.NativeStart.main(Native Method)
E/AndroidRuntime(1607): Caused by: java.lang.NullPointerException
E/AndroidRuntime(1607):     at android.app.Activity.findViewById(Activity.java:1884)
E/AndroidRuntime(1607):     at com.example.lifeahead.MainActivity.<init>(MainActivity.java:22)
E/AndroidRuntime(1607):     at java.lang.class.newInstanceImpl(Native Method)
E/AndroidRuntime(1607):     at java.lang.class.newInstance(Class.java:1208)
E/AndroidRuntime(1607):     at android.app.Instrumentation.newActivity(Instrumentation.java:1061)
E/AndroidRuntime(1607):     at android.app.ActivityThread.performlaunchActivity(ActivityThread.java:2112)
E/AndroidRuntime(1607):     ... 11 more

我感谢所有帮助！

解决方法:

stacktrace告诉你

  Button logIn = (Button) findViewById(R.id.login);

findViewById返回的对象为null,因为您拥有的唯一方法是logIn(). findViewById返回null的唯一原因是因为您正在查找不属于当前活动的视图层次结构的视图

android – java.lang.RuntimeException无法实例化服务：java.lang.NullPointerException

我试图创建一个启动服务的活动(在新线程中).它包含一个带有两个editText和一个名为Send的按钮的布局.关键是当我执行MainActivity时,它会抛出：

06-15 22:32:13.312: E/AndroidRuntime(643): FATAL EXCEPTION: main
06-15 22:32:13.312: E/AndroidRuntime(643): java.lang.RuntimeException: Unable to instantiate service hikoki.services.NotificationsService: java.lang.NullPointerException
06-15 22:32:13.312: E/AndroidRuntime(643):  at android.app.ActivityThread.handleCreateService(ActivityThread.java:2237)
06-15 22:32:13.312: E/AndroidRuntime(643):  at android.app.ActivityThread.access$1600(ActivityThread.java:123)
06-15 22:32:13.312: E/AndroidRuntime(643):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1201)
06-15 22:32:13.312: E/AndroidRuntime(643):  at android.os.Handler.dispatchMessage(Handler.java:99)
06-15 22:32:13.312: E/AndroidRuntime(643):  at android.os.Looper.loop(Looper.java:137)
06-15 22:32:13.312: E/AndroidRuntime(643):  at android.app.ActivityThread.main(ActivityThread.java:4424)
06-15 22:32:13.312: E/AndroidRuntime(643):  at java.lang.reflect.Method.invokeNative(Native Method)
06-15 22:32:13.312: E/AndroidRuntime(643):  at java.lang.reflect.Method.invoke(Method.java:511)
06-15 22:32:13.312: E/AndroidRuntime(643):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
06-15 22:32:13.312: E/AndroidRuntime(643):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
06-15 22:32:13.312: E/AndroidRuntime(643):  at dalvik.system.NativeStart.main(Native Method)
06-15 22:32:13.312: E/AndroidRuntime(643): Caused by: java.lang.NullPointerException
06-15 22:32:13.312: E/AndroidRuntime(643):  at android.content.Contextwrapper.getSystemService(Contextwrapper.java:386)
06-15 22:32:13.312: E/AndroidRuntime(643):  at hikoki.services.NotificationsService.<init>(NotificationsService.java:35)
06-15 22:32:13.312: E/AndroidRuntime(643):  at java.lang.class.newInstanceImpl(Native Method)
06-15 22:32:13.312: E/AndroidRuntime(643):  at java.lang.class.newInstance(Class.java:1319)
06-15 22:32:13.312: E/AndroidRuntime(643):  at android.app.ActivityThread.handleCreateService(ActivityThread.java:2234)
06-15 22:32:13.312: E/AndroidRuntime(643):  ... 10 more

主要活动的代码是这样的：

public class MainActivity extends Activity {
    private String TAG = getClass().getSimpleName();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Thread t= new Thread(){
            public void run(){
                Intent intent=new Intent(getContext(),NotificationsService.class);
                //Intent intent=new Intent("hikoki.services.NotificationsService");
                Log.d(TAG,"sending notificationsService");
                startService(intent);
            }
        };
        t.start();
    }

    protected Context getContext() {    
        return this;
    }
}

NotificationsService代码在这里：

public class NotificationsService extends IntentService{
    private static  int TIME_INTERVAL_MILIS=5000;
    private static final int REFRESH=10;
    private  notificationmanager noteManager;
    private static List<FlightStatusNote> flights= new ArrayList<FlightStatusNote>();

    public NotificationsService(){
        super("NotificationsService"); 
        noteManager= notificationmanager)getSystemService(Context.NOTIFICATION_SERVICE)
    }
}

AndroidManifest是这样的：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="hikoki.services"
    android:versionCode="1"
    android:versionName="1.0" >

<uses-sdk
    android:minSdkVersion="15"
    android:targetSdkVersion="17" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name="hikoki.services.MainActivity"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <service android:name=".FlightStatusService"></service>
    <service android:enabled="true" android:name=".NotificationsService"></service>
</application>

</manifest>

解决方法

您不能从初始化程序(如您原来的那样)或构造函数(就像您现在一样)调用getSystemService().请覆盖onCreate(),并在那里调用getSystemService().

基本上,直到调用onCreate()(或者更准确地说,直到你从onCreate()调用super.onCreate()之后),服务上的继承方法还没有准备好供您使用.

android – java.lang.RuntimeException：无法实例化活动ComponentInfo / java.lang.ClassNotFoundException

我在设备上运行时遇到此错误.我一直在浏览这个问题,我很确定我没有提到的问题.我的两个活动都在 AndroidManifest中声明,而intent过滤器就在那里.我没有任何库(除了v4支持库,但声明它不会改变问题).我尝试用.MainActivity替换我的Manifest carpedujourproductions.quickpronote.MainActivity,但仍然没有运气.我正在运行Android Studio 0.2.5,所以我找不到如何解决与Java Build Path / Order and Export相关的潜在问题

我忍不住注意到我的MainActivity图标在树的左上角有一个灰色的十字架.

logcat的：

E/AndroidRuntime: FATAL EXCEPTION: main
        java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{carpedujourproductions.quickpronote/carpedujourproductions.quickpronote.MainActivity}: java.lang.classNotFoundException: Didn't find class "carpedujourproductions.quickpronote.MainActivity" on path: DexPathList[[zip file "/data/app/carpedujourproductions.quickpronote-2.apk"],nativeLibraryDirectories=[/data/app-lib/carpedujourproductions.quickpronote-2,/vendor/lib,/system/lib]]
        at android.app.ActivityThread.performlaunchActivity(ActivityThread.java:2157)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2281)
        at android.app.ActivityThread.access$600(ActivityThread.java:148)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1263)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:137)
        at android.app.ActivityThread.main(ActivityThread.java:5124)
        at java.lang.reflect.Method.invokeNative(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:525)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
        at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:110)
        at dalvik.system.NativeStart.main(Native Method)
        Caused by: java.lang.classNotFoundException: Didn't find class "carpedujourproductions.quickpronote.MainActivity" on path: DexPathList[[zip file "/data/app/carpedujourproductions.quickpronote-2.apk"],/system/lib]]
        at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:53)
        at java.lang.classLoader.loadClass(ClassLoader.java:501)
        at java.lang.classLoader.loadClass(ClassLoader.java:461)
        at android.app.Instrumentation.newActivity(Instrumentation.java:1061)
        at android.app.ActivityThread.performlaunchActivity(ActivityThread.java:2148)
        ... 12 more

随意浏览AndroidManifest,MainActivity.java,FirstRun.java等代码here.

解决方法

您的MainActivity.java被排除在编译之外,因此该类不包含在.apk中.删除行：

<file url="file://$PROJECT_DIR$/src/carpedujourproductions/quickpronote/MainActivity.java" />

来自.idea / compiler.xml文件的excludeFromCompile部分(或者您可以从IDE设置执行此操作).

我们今天的关于Comm库异常：java.lang.RuntimeException：javax.comm.NoSuchPortException和commdao.java的分享已经告一段落，感谢您的关注，如果您想了解更多关于Android FATAL EXCEPTION MAIN：java.lang.RuntimeException：无法启动活动ComponentInfo、Android java.lang.RuntimeException：无法实例化活动ComponentInfo … java.lang.NullPointerException、android – java.lang.RuntimeException无法实例化服务：java.lang.NullPointerException、android – java.lang.RuntimeException：无法实例化活动ComponentInfo / java.lang.ClassNotFoundException的相关信息，请在本站查询。

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