Must主题的文章列表，还有Must的技术要点_第27页

MySQL Error number: MY-011634; Symbol: ER_GRP_RPL_FORCE_MEMBERS_MUST_BE_EMPTY; SQLSTATE: HY000

文档解释Errornumber:MY-011634;Symbol:ER_GRP_RPL_FORCE_MEMBERS_MUST_BE_EMPTY;SQLSTATE:HY000Message:group_replication_force_membersmustbeemptyongroupstart.Currentvalu...

IT技术学习 ·2023-06-27

MySQL Error number: 3017; Symbol: ER_SLAVE_SQL_THREAD_MUST_STOP; SQLSTATE: HY000

文档解释Errornumber:3017;Symbol:ER_SLAVE_SQL_THREAD_MUST_STOP;SQLSTATE:HY000Message:Thisoperationcannotbeperformedwitharunningslavesqlthread;runSTOPSLAVESQL_THREADf...

IT技术学习 ·2025-01-28

MySQL Error number: MY-013166; Symbol: ER_AUDIT_LOG_USER_FIRST_CHARACTER_MUST_BE_ALPHANUMERIC; SQLSTATE: HY000

文档解释Errornumber:MY-013166;Symbol:ER_AUDIT_LOG_USER_FIRST_CHARACTER_MUST_BE_ALPHANUMERIC;SQLSTATE:HY000Message:Firstcharacteroftheusernamemustbealphanumeric.MY-0...

IT技术学习 ·2025-01-28

MySQL Error number: 3085; Symbol: ER_SLAVE_CHANNEL_SQL_THREAD_MUST_STOP; SQLSTATE: HY000

文档解释Errornumber:3085;Symbol:ER_SLAVE_CHANNEL_SQL_THREAD_MUST_STOP;SQLSTATE:HY000Message:Thisoperationcannotbeperformedwitharunningslavesqlthread;runSTOPSLAVESQL...

IT技术学习 ·2025-01-28

MySQL Error number: MY-010789; Symbol: ER_NDB_POOL_SIZE_MUST_MATCH_NDB_CLUSTER_CONNECTION_POOL_NODEIDS; SQLSTATE: HY000

文档解释Errornumber:MY-010789;Symbol:ER_NDB_POOL_SIZE_MUST_MATCH_NDB_CLUSTER_CONNECTION_POOL_NODEIDS;SQLSTATE:HY000Message:NDB:Thesizeoftheclusterconnectionpoolmust...

IT技术学习 ·2025-01-28

Python错误 ValueError: If using all scalar values, you must pass an index.

在使用pandas，使用json（dict）数据类型创建DataFrame时错误 ValueError:Ifusingallscalarvalues,youmustpassanindex。这是因为pandas的DataFrame方法需要传入一个可迭代的对象(列表，元组，字典等)，或者给DataFrame指定i...

代码星球 ·2021-02-22

JDBC操作MySQL出现：This result set must come from a statement that was created with a result set type of ResultSet.CONCUR_UPDATABLE, ...的问题解决

错误如下：ThisresultsetmustcomefromastatementthatwascreatedwitharesultsettypeofResultSet.CONCUR_UPDATABLE,thequerymustselectonlyonetable,cannotusefunctionsandmustsel...

代码星球 ·2021-02-19

spring boot 启动报：Composite-id class must implement Serializable: xxx错误

在对springboot项目进行修改后，重新启动时报如下错误：Composite-idclassmustimplementSerializable:xxxxxx为具体的类找到xxx类，查看是否定义了多个@Id，如下图：如果该实体类对应的表只有一个主键，即图中的id，把linkName上面的@Id注解删除即可，重新启动就...

代码星球 ·2021-02-19

apache启动服务报错ServerRoot must be a valid directory

【现象】D:apacheApache24in>httpd-kinstallInstallingthe'Apache2.4'serviceThe'Apache2.4'serviceissuccessfullyinstalled.Testinghttpd.conf....Errorsreportedheremust...

代码星球 ·2021-02-16

MySQL root账户密码设为“root”后执行命令提示ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.

修改root账户密码为“root”后，提示ERROR1820(HY000):YoumustresetyourpasswordusingALTERUSERstatementbeforeexecutingthisstatement.MySQL5.7加强了安全保障，以上意思是密码不符合安全策略要求，我们输入一个8位或以上长度...

代码星球 ·2021-02-12

关于YII框架Response content must not be an array的解决方法

publicfunctionactionGet_permissions(){Yii::$app->response->format=yiiwebResponse::FORMAT_JSON;returnAuth_Item::find()->where(['owner_user_id'=>...

代码星球 ·2021-02-11

子类继承父类时JVM报出Error：Implicit super constructor People() is undefined for default constructor. Must define an explicit constructor

当子类继承父类的时候，若父类没有定义带参的构造方法，则子类可以继承父类的默认构造方法当父类中定义了带参的构造方法，子类必须显式的调用父类的构造方法若此时，子类还想调用父类的默认构造方法，必须在父类中明确声明默认的构造方法1packagecom.gaohui;23publicclassTest{4publicstatic...

代码星球 ·2021-02-08

LVM挂载失败mount: you must specify the filesystem type

因意外原因导致机器重启，机器起来后发现磁盘挂载没有了，挂载，结果报错[root@all/]#mount/dev/hdc2/mnt/cdrommount:youmustspecifythefilesystemtype解决办法：1.先用vgscan2.vgchange-ay3.lvscan4.mount到第三步的时候如果正...

代码星球 ·2021-01-23

ERROR 1820 (HY000): You must SET PASSWORD before executing this statement

重新设置一次密码 mysql>setpassword=password('root');QueryOK,0rowsaffected(0.00sec)...

代码星球 ·2021-01-23

根本上解决npm install 报错“ajv-keywords@3.4.0 requires a peer of ajv@^6.9.1 but none is installed. You must install peer dependencies yourself.“

每次项目npminstall的时候都报这个错误，然后网上找的方法就把这个ajv重新安装下，感觉有点麻烦，后来有次我把npm更新了一下（我的版本是：6.1.0），更新到了最新版本，这个问题就咋也没出现过了，原来是npm版本的问题。查看自己的npm版本： npm-v 更新本机的npm到最新版...

代码星球 ·2021-01-13