编译出现如下错误 error: control may reach end of non-void function [-Werror,-Wreturn-type] 这个错误可能和编译器有关(在相同代码情况有的编译器可能不会报错,而有的可能会报错),也可能是因为函数没有返回值导致,比如:下面这个函数,如果输入参数a < b 就会导致函数没有返回值. int fun(int a, int b){ if(a > b) return a; }…

errror :   implicitly declaring function 'malloc' with type void *(unsigned long ) Be sure to include the correct header file. #include <stdlib.h> Casting the return is allowed but frowned upon in C as being unnecessary. double* sequence = malloc(..…

"Error: [ng:areq] Argument 'keywords' is not a function, got undefined" 代码类似这样的: <div ng-app="xxxx" ng-controller="xxxx"> //... </div> var app = angular.module("xxxx", []); app.controller('xxxx', functio…

1.错误描述 14:07:26 Apply changes to rand_string Error 1313: RETURN is only allowed in a FUNCTION SQL Statement: CREATE PROCEDURE `rand_string` (n int) BEGIN DECLARE chars varchar(100) DEFAULT 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; DECLA…

今天把用ionic做一个案例,和ionic示例项目差不多,只是用requirejs分离了controller,但是一直报错 Error: [ng:areq] Argument ‘AppCtrl’ is not a function, got undefined define(function (require) { 'use strict'; var controllers = angular.module('starter.controllers', []); controllers.cont…

今天在VS2015中用编译好的QT5静态库打包软件,配置好QT的静态环境后, 发现报MSVCRTD.lib(_chandler4gs_.obj) : error LNK2019: unresolved external symbol __except_handler4_common referenced in function __except_handler4 错误,显然__except_handler4 是定义在VC运行时库的函数,显然这个函数被自动linked了,肯定是某个地方使用了动态链…

char & operator[](int i);const char & operator[](int i);/*const char & operator(int i);*/编译出错:error C2556: 'const char &MyString::operator [](int)' : overloaded function differs only by return type from 'char &MyString::operator [](int…

今晚做android作业,出现错误提示:void is an invalid type for the variable, invalid:无效的  variable:变量,在网上找了一下后知道是 方法 没有弄好,仔细检查了代码,是漏了一个右花括号“}”,加上后,就正常了.…

在5.7.16搭建多源复制时,出现如下错误:   mysql> change master to master_host='192.168.56.156',master_user='repl',master_password='oracle',master_port=3306,MASTER_AUTO_POSITION = 1 for channel 'master-15633006'; ERROR 3077 (HY000): To have multiple channels, reposito…

Each trigger starts with an “undefined” state or a “void” state which doesn’t match any of your currently defined states. You have to be aware of when you’re in that state so that you don’t stumble on any undesired behaviors. This is especially impor…