PHP:Cannot modify header information - headers already sent by错误的解决方案
<?php ob_start();setcookie("username","test",time()+3600);echo "the username is:".$HTTP_COOKIE_VARS["username"]."\n";echo "the username is:".$_COOK...
MySQL - 问题集 - 触发器更新本表数据异常"Can’t update table ‘tbl’ in stored function/trigger because it is already used by statement which invoked this"
如果你在触发器里面对刚刚插入的数据进行了 insert/update, 则出现这个问题。因为会造成循环的调用.create trigger testbefore update on testfor each row update test set NEW.updateTime = NOW() wh...
Spyder提示ValueError: API 'QString' has already been set to version 1
转载自:http://wuyuans.com/2013/02/spyder-valueerror-api-qstring-has-already-been-set-to-version-1/在IPython中使用enthought.mayavi正常,但在Spyder中确有问题,提示如下:ValueE...
MyBatis 中 Result Maps collection already contains value for xxx 错误原因
出现此类错误的原因是同一个DAO操作多个Mapper导致的,将Mapper配置文件的 ResultMap的ID修改成不相同即可解决
The type R is already defined 错误解决办法
今天在导入一个开源项目的时候遇到了The type R is already defined的错误,试过了删除R,clear project都还是报这个错,Google一下之后找到了解决办法在 Project->Properties->Builders,把Java-Builder的选择去
ERROR: mount point is already in use
在给solaris系统升级的时候,用lu方法遇到下面的错误。-bash-3.2# lumount rootd3_EISMar14ERROR: mount point </.alt.rootd3_EISMar14/opt/oracle/product/10.2> is already in...
【spring boot】【elasticsearch】spring boot整合elasticsearch,启动报错Caused by: java.lang.IllegalStateException: availableProcessors is already set to [8], rejecting [8
spring boot整合elasticsearch,启动报错:Caused by: java.lang.IllegalStateException: availableProcessors is already set to [], rejecting [] at io.netty.util...
There is already an open DataReader associated with this Command which must be closed first." exception in Entity Framework
Fixing the "There is already an open DataReader associated with this Command which must be closed first." exception in Entity Framework下面代码可能会报如标题所示错误...
Grunt Server:Fatal error: Port 35729 is already in use by another process.
提示35729端口被占用,使用lsof命令进行查看:y@y:yo-test$ lsof -i :COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAMEchrome y 213u IPv4 0t0 TCP local...
关于 getWriter() has already been called for this response 的错误解决办法
java.lang.IllegalStateException: getWriter() has already been called for this response今天在做显示图片的时候,(用流从数据库读出来显示)遇到了这个错误,java.lang.IllegalStateException...
[BTS] System.Xml.Schema.XmlSchemaException: The complexType has already been declared when generate IDoc schema.
I use wcf-sap adapter for generate the schema of IDoc that named "YHREMPMASTER". but throw following error message.System.Xml.Schema.XmlSchemaExceptio...
【原创】InputStream has already been read - do not use InputStreamResource if a stream needs to be read multiple times
一、背景基于SpringBoot 构建了一个http文件下载服务,检查tomcat access 发现偶尔出现500 状态码的请求,检查抛出的异常堆栈2019-03-20 10:03:14,273 ERROR [http-bio-8080-exec-3] o.s.b.w.s.s.ErrorPageF...
ArcGIS 创建要素时提示“表已经被注册(table already registered)”
今天一位实施大哥在ArcCatalog中要重建一个要素类,所以就在ArcCatalog中连接上Oracle数据库,直接删除了要素类,然后重新创建了一个新的要素类,可是却报错“表已经被创建”,并提示不可以在'sde_table_registry'表中插入重复的键值,记得以前碰到过这种状态,删除的不彻底...
Redis Error:/var/redis/run/redis_6379.pid exists, process is already running or crashed
命令service Redis start/var/redis/run/redis_6379.pid exists, process is already running or crashed引起这类问题一般都是强制关掉电源或断电造成的,也是没等Linux正常关机科学的处理办法2种1:可用安装文件启...
android:Program type already present: android.support.v4.app.INotificationSideChannel
背景这个错误的原因是:androidx和 android.support同时存在。首先,网上有很多解答说这样处理:在 gradle.properties 添加:android.useAndroidX=trueandroid.enableJetifier=true然后再build.gradle 中添加...
Android Studio 编译: Program type already present: XXX 解决方案
3情况1:个例build.gradle 中 dependencies { classpath 'com.android.tools.build:gradle:3.1.1' // }改成 dependencies { //目前最新版【201...
unable to bind listening socket for address '127.0.0.1:9090': Address already in use (98)
unable to bind listening socket for address '127.0.0.1:9090': Address already in use (98)php-fpm 启动错误9090 端口被占用,所以查看端口被谁占用sudo netstat -lntup | grep 9
mount: /dev/sdb1 already mounted or /mnt/hdb busy 导致NameNode无法启动
最近,公司由于断电导致的服务器关机,等到来电了,重启集群发现Namenode无法启动,查看原因是由于无法加在faimage文件,在查看一下Namenode的磁盘挂在情况(df -h命令查看),发现磁盘并有挂在上,于是执行mount -a命令 出现mount: /dev/sdb1 already mo...
Elastic: IllegalStateException: availableProcessors is already set to [8], rejecting [8]
问题springboot整合了spring data elasticsearch启动报错IllegalStateException: availableProcessors is already set to [8], rejecting [8]解决原因是因为启动服务时elasticsearch连接...
a different object with the same identifier value was already associated with the session解决方案
org.springframework.orm.hibernate3.HibernateSystemException: a different object with the same identifier value was already associated with the session...