标签: runtime-error

症状:

Git突然拒绝推送存储库(在我的情况下为github):

$ git push
Counting objects: 9292, done.
Delta compression using up to 8 threads.
Compressing objects: 100% (2136/2136), done.
error: RPC failed; result=22, HTTP code = 411
fatal: The remote end hung up unexpectedly
Writing objects: 100% (8222/8222), 1.27 MiB | 837 KiB/s, done.
Total 8222 (delta 6060), reused 8181 (delta 6033)
fatal: The remote end hung up unexpectedly
Everything up-to-date

我想做的就是检查一个对象是否为空,但无论我做什么,如果它编译,它会抛出一个NullReferenceException只是试图检查!这就是我所做的:

    If ((Not (comp.Container Is Nothing)) And (Not (comp.Container.Components Is Nothing))) Then
        For i As Integer = 0 To comp.Container.Components.Count() - 1 Step 1
            fixUIIn(comp.Container.Components.Item(i), style)
        Next
    End If

    If ((Not IsDBNull(comp.Container)) And (Not IsDBNull(comp.Container.Components))) Then
        For i As Integer = 0 To comp.Container.Components.Count() - 1 Step 1
            fixUIIn(comp.Container.Components.Item(i), style)
        Next
    End If

    If ((Not IsNothing(comp.Container)) And (Not IsNothing(comp.Container.Components))) Then
        For i As Integer = 0 To comp.Container.Components.Count() - 1 Step 1
            fixUIIn(comp.Container.Components.Item(i), style)
        Next
    End If

    If …

在模拟器中安装Android应用程序时,我收到以下错误.

请帮我解决这个错误.

错误信息:

emulator.exe -avd avd_name

adb wait-for-device    

adb install path-to.apk    

could not access the package manager. is the system running while installing android application....

新Java程序员在尝试运行Java程序时经常会遇到这些消息.

Error: Main method not found in class MyClass, please define the main method as:
   public static void main(String[] args)
or a JavaFX application class must extend javafx.application.Application

Error: Main method is not static in class MyClass, please define the main method as:
   public static void main(String[] args)

Error: Main method must return a value of type void in class MyClass, please
define the main method as:
   public static void main(String[] args)

java.lang.NoSuchMethodError: main
Exception in thread "main"

这是什么意思,什么可以导致它,以及应该怎么做才能解决它？

当我执行以下代码时:

public static void main(String[] args) {
    try {
        FirefoxDriver driver = new FirefoxDriver();
        driver.get("http:www.yahoo.com");
    } catch (NoClassDefFoundError ex) {
        System.out.println("error: " + ex.getStackTrace());
    }
}

我遇到以下错误:

错误:[Ljava.lang.StackTraceElement; @ 80f4cb

线程"main"中的异常java.lang.NoClassDefFoundError:com/google/common/base/Function

有人可以帮我找到解决方案或原因吗？

#include <queue>
using namespace std;

class Test{
    int *myArray;

        public:
    Test(){
        myArray = new int[10];
    }

    ~Test(){
        delete[] myArray;
    }

};


int main(){
    queue<Test> q
    Test t;
    q.push(t);
}

运行此操作后,我收到运行时错误"double free or corruption".如果我摆脱析构函数内容(delete),它工作正常.怎么了？

在模拟器中运行(构建+运行)项目时,对Xcode6 beta中的"无法在当前状态下引导设备:引导"错误的猜测.我只是在Xcode 6中运行我现有的项目,我在上面找到了消息.我尝试清理,删除派生数据,甚至重新启动模拟器都不起作用.最后我重新启动了我的Xcode 6然后它正在工作.任何更简单的方法来解决错误而不是重新启动您的xcode6.

我是一名新的Android程序员,最近,我的很多项目都收到了这个错误:

07-31 23:45:19.592: ERROR/AndroidRuntime(716): java.lang.RuntimeException: Unable to start     

activity ComponentInfo{com.amrit.musifind/com.amrit.musifind.Main}: 

java.lang.NullPointerException

任何人都可以帮我解决这个问题吗？

这是整个logcat堆栈跟踪:

07-31 23:45:18.512: INFO/ActivityManager(63): Starting activity: Intent {     
act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000   
cmp=com.amrit.musifind/.Main }
07-31 23:45:18.682: INFO/ActivityManager(63): Start proc com.amrit.musifind for activity   
com.amrit.musifind/.Main: pid=716 uid=10025 gids={3003}
07-31 23:45:18.962: INFO/jdwp(716): received file descriptor 20 from ADB
07-31 23:45:19.102: DEBUG/ddm-heap(716): Got feature list request
07-31 23:45:19.572: DEBUG/AndroidRuntime(716): Shutting down VM
07-31 23:45:19.572: WARN/dalvikvm(716): threadid=3: thread exiting with uncaught   
exception (group=0x4001aa28)
07-31 23:45:19.572: ERROR/AndroidRuntime(716): Uncaught handler: thread main exiting due 
to uncaught …

我知道在stackoverflow中已经发布了很多相同的问题并尝试了不同的解决方案以避免运行时错误,但它们都不适用于我.

组件和Html代码

export class TestComponent implements OnInit, AfterContentChecked {
    @Input() DataContext: any;
    @Input() Position: any;
    sampleViewModel: ISampleViewModel = { DataContext: : null, Position: null };
    constructor(private validationService: IValidationService, private modalService: NgbModal, private cdRef: ChangeDetectorRef) {
    }

    ngOnInit() {

    }
    ngAfterContentChecked() {

            debugger;
            this.sampleViewModel.DataContext = this.DataContext;
            this.sampleViewModel.Position = this.Position;

    }


<div class="container-fluid sample-wrapper text-center" [ngClass]="sampleViewModel.DataContext?.Style?.CustomCssClass +' samplewidget-'+ sampleViewModel.Position?.Columns + 'x' + sampleViewModel.Position?.Rows">
     //some other html here
</div>

请注意:使用DynamicComponentLoader动态加载此Component

在我遇到麻烦之后,我发现了几个问题

首先,使用DynamicComponentResolver动态加载此子组件,并传递输入值,如下所示

 ngAfterViewInit() {
    this.renderWidgetInsideWidgetContainer();

  }


  renderWidgetInsideWidgetContainer() {
    let component = this.storeFactory.getWidgetComponent(this.dataSource.ComponentName);
    let …

这是我第一次使用java Rmi*.我有一个自定义类,它扩展UnicastRemoteObject并实现了一个扩展远程的接口.我认为我已经在类中正确实现了接口的方法,但是IllegalArgumentException当我尝试运行我的代码时,我仍然得到了一个(而且它是关于一个没有参数的方法).

jvm声称遇到了非法的远程方法,但该方法及其实现对我来说似乎没问题.

是否有任何其他原因导致除了错误地实现或调用方法之外可能发生此异常？

这是堆栈跟踪:

SEVERE: null
java.rmi.server.ExportException: remote object implements illegal remote interface; nested exception is:
        java.lang.IllegalArgumentException: illegal remote method encountered: public abstract java.lang.String Node.getId()
        at sun.rmi.server.UnicastServerRef.exportObject(Unknown Source)
        at java.rmi.server.UnicastRemoteObject.exportObject(Unknown Source)
        at java.rmi.server.UnicastRemoteObject.exportObject(Unknown Source)
        at java.rmi.server.UnicastRemoteObject.<init>(Unknown Source)
        at java.rmi.server.UnicastRemoteObject.<init>(Unknown Source)
        at NodeImpl.<init>(NodeImpl.java:30)
        at NodeLauncher.main(NodeLauncher.java:11)
Caused by: java.lang.IllegalArgumentException: illegal remote method encountered: public abstract java.lang.String Node.getId()
        at sun.rmi.server.Util.checkMethod(Unknown Source)
        at sun.rmi.server.Util.getRemoteInterfaces(Unknown Source)
        at sun.rmi.server.Util.getRemoteInterfaces(Unknown Source)
        at sun.rmi.server.Util.createProxy(Unknown Source)
        ... 7 more

这是界面:

import java.rmi.*;
import java.util.LinkedList; …