我的maven 项目有一个红色感叹号, 而且Problems 存在 errors : Description Resource Path Location Type Archive for required library: 'D:/mvn/repos/junit/junit/3.8.1/junit-3.8.1.jar' in project 'xxx' cannot be read or is not a valid ZIP file ktb-mgr Maven Webapp Build pa…

required,这是HTML5中的一个新属性:这是HTML5中input元素中的一个属性. required译为必须的,在input元素中应用这一属性,就表示这一input元素节点是必填的或者必选的. 用法就是在设计表单时,指定某些选项为必填项(required),只有当用户填写了该选项后,用户才能够提交表单. 栗子: <form action="/backstage">  <input type="text" placeholder="…

看到了http://stackoverflow.com/questions/5547162/eclipse-error-indirectly-referenced-from-required-class-files , 也没搞明白. 后面被证明, 实际上还是Unresolved compilation problems [ERROR] [09-30 11:04:19] org.springframework.web.context.ContextLoader - Context initiali…

今日在写GenericDao时,发现了一个异常,内容如下: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'genericDao' defined in class path resource [spring.common.xml]: Invocation of init method failed; nested exception is java.lang.Ille…

原文链接:http://rxxluowei.iteye.com/blog/671893 今天写第一次写JavaFX的入门程序就GG 遇到了导入API的问题,无奈疯狂地通过网络找解决方案.. 我的问题是: 导入import javafx.application.Application;时 出现这个错误提示 Access restriction: The type 'Application' is not API (restriction on required library 'C:\Progra…

input 里面增加这样的语句: <input type="text" placeholder="您的姓名" required oninvalid="setCustomValidity('请输入您的姓名');" oninput="setCustomValidity('');" />…

HTTP Status 400 - Required String parameter 'userName' is not present 错误 先mark  有时间详细写 参考链接: https://yq.aliyun.com/articles/29107…

真机测试的时候弹出这样的提示:The certificate used to sign ***has either expired or has been revoked. An updated certificate is required to sign and install the application.... 想了想自己清理过本地的证书,于是参照 stackoverflow 上的方法试了下,果然好了.具体流程如下: Shift(⇧) + Command(⌘) + K 或者 Produ…

java.lang.IllegalArgumentException: 'sessionFactory' or 'hibernateTemplate' is required 严重: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListenerorg.springframework.beans.facto…

Required attribute can be applied to a property of a domain class. EF Code-First will create a NOT NULL column in a database table for a property on which we apply Required attribute. Note that it can also be used with ASP.Net MVC as a validation att…

public override void Init() { //在注册管道事件中 require session state //只能在引发“HttpApplication.AcquireRequestState”之前调用“HttpContext.SetSessionStateBehavior”. this.BeginRequest += (sender, e) => HttpContext.Current.SetSessionStateBehavior(SessionStateBehavior…

最近遇到一起关于"I/O is frozen on database xxx. No user action is required. However, if I/O is not resumed promptly, you could cancel the backup."的案例. 出现问题的时候,我去执行一个非常简单的SQL语句,执行时间非常长,检查没有阻塞.正常情况下,应该是几秒就OK.后面检查错误日志,发现有大量这类消息.而这个点,我们没有备份数据库的作业.后面搜索,了解了一下…

@RequestParam jQuery调用方式: deleteFile: function(filePath) { return ajax({ method: 'POST', url: '/cm/soft/package/package/deleteFile', data: { fileDir: filePath } }); }, 后台java controller形式 public BaseResultVO deleteFile(@RequestParam("fileDir") S…

Intel HAXM is required to run this AVD,VT-x is disabled in BIOS;Enable VT-x in your BIOS security settings (refer to documentation for your computer) . 意思是让进入你的BIOS系统中将BIOS中的VT-x 给开启了. 解决方案:重启电脑.按F10 (惠普电脑) 然后进入到BIOS中. 选择 系统设置 -> 处理器虚拟化技术 将这个选项开启 .…

安装第三方库出现 Python version 2.7 required, which was not found in the registry 建立一个文件 register.py 内容如下. 然后执行该脚本. import sys from _winreg import * # tweak as necessary version = sys.version[:3] installpath = sys.prefix regpath = "SOFTWARE\\Python\\Pythonco…

在Eclipse中编写Java代码时,用到了BASE64Decoder,import sun.misc.BASE64Decoder;可是Eclipse提示:Access restriction : The type BASE64Decoder is not accessible due to restriction on required library C:\Programfiles\java\jre6\lib\rt.jarAccess restriction : The constructo…

由于我安装Python64位的,下载后没注册,安装Twisted时老提示“python version 2.7 required,which was not found in the registry”错误 解决方法 1.任意位置存放reg.py文件 # # script to register Python 2.0 or later for use with win32all # and other extensions that require Python registry setting…

The type * is not accessible due to restriction on required library”的错误, 意思是所需要的类库由于受限制无法访问. 解决办法: 1.选中项目->右键->进入Properties视图,选中Java Build Path->点击Libraries->展开JRE System Library[JavaSE-1.6],选中Access rules这一项.如图: 2.Edit->点击Add->在Rule Pat…

WCF Proxy Authentication Required The Problem When I’m in the office, I have to use an authenticated proxy to get outside our intranet and to the internet. When I called a service that resides on the web, I got the 407 error. How can we fix this with…

1.错误描述:今天在起归档的时候报一下错误: SQL> alter database archivelog; alter database archivelog * ERROR at line : ORA: instance recovery required, cannot set ARCHIVELOG mode 2.从错误上看到是由于三大文件(datafile,controlfile,logfile)的scn不一致导致,造成scn不一致的原因是我们用了shutdown abort(shutd…

代码的一个小小Bug有时候会让人焦头烂额,费了很大劲搞明白的问题,如果不记录下来,是很容易遗忘的! 定义一个类,如果按照以下的方式使用,则会出现TypeError: testFunc() missing 1 required positional argument: 'self'.如果认真细究的话,笔者曾反复修改参数,但是于事无补. 在Python中,应该先对类进行实例化,然后在应用类,如下图所示.注意,实例化的过程是应该待括号的. 总结:Python中,类应该先实例化,然后再使用类!…

升级到macos sierra xcode8 报提示:requires additional components to support runing and debugging choose Install to add required components 当你遇到这个情况的时候,不要慌.你就是上网搜索也不会有什么好结果的. 本人真实经历该错误,,一小时多解决.该错误的解决可以为开发工程师节省一个小时时间. 亲爱的主耶稣,愿你保守我们. 原因:系统安装完毕自己打开并未重启,须再次重启才能使…

~~~~~~~~~~~My problem is here~~~~~~~~~~~~~~~~~~~~~~ Error: Microsoft visual C++ 10.0 is required (unable to find vcvarsall.bat) %VS110COMNTOOLS%部分python的code在setup中存在的问题:找不到C++compiler vcvarsall.bat 不要完全相信所谓的解除bug的神器stackoverflow中给出的答案 http://stackov…

springMVC action接收参数: org.springframework.validation.BindException: org.springframework.validation.BeanPropertyBindingResult: 1 errorsField error in object 'projectStep' on field 'createDate': rejected value [2016-6-23]; codes [typeMismatch.projectSt…

这种情况就是在通过spring配置hibernate4的时候(注意,这里是hibernate4不是hibernate3,hibernate3的),使用的是HibernateDaoSupport的这种方式: public class BaseDao extends HibernateDaoSupport{ ***** } 类似这种方式,然后在applicationContext.xml配置为: *** <!-- 配置 SessionFactory --> <bean id="se…

最近把移动硬盘上的一个Android项目复制到笔记本上面,import后项目文件夹始终有一个红色叹号,console里面提示“archive for required library...”,原来是libs\android-support-v4.jar文件被损坏了,重新下载并覆盖这个文件,恢复正常了!!!…

Several ports (8005, 8080, 8009) required by Tomcat v7.0 Server at localhost are already in use. The server may already be running in another process, or a system process may be using the port. To start this server you will need to stop the other pro…

本篇主要讲解 Swift 中 Designated.Convenience和 Required 的使用: 在 OC 中 init 方法是非常不安全的,没人能够保证 init 只被调用一次,也没有人保证在初始化方法调用以后实例的各个变量都完成初始化,甚至如果在初始化里使用属性进行设置的的话,还可能会造成各种问题.Swift 强化了 designated 初始化方法的地位.swift 中不加修饰的 init 方法都需要在方法中保证所有非 Optional 得实例变量被赋值初始化,而在子类中也强制(显…

./configure --prefix=/usr/local/glibc-2.15 configure: error: you must configure in a separate build directorymkdir -p buildcd build../configure --prefix=/usr/local/glibc-2.15 error: linker with -z relro support required参http://askubuntu.com/questions…

pip安装包报错:Microsoft Visual C++ 9.0 is required Unable to find vcvarsall.bat Windows7下pip安装包报错:Microsoft Visual C++ 9.0 is required Unable to find vcvarsall.bat 在Windows7x64下使用pip安装包的时候提示报错:Microsoft Visual C++ 9.0 is required  (Unable to find vcvarsal…