PHP empty函数在检测一个非变量情况下报错的解决办法. PHP开发时,当你使用empty检查一个函数返回的结果时会报错:Fatal error: Can't use function return value in write context 例如下面的代码: <?php echo empty(strlen('test')); 转到PHP在线手册里面查看,在empty函数描述的地方有以下文字: Note : empty() only checks variables as anyth…
Base64 报错 的解决办法, 报错如下:1. FormatException: The input is not a valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or a non-white space character among the padding characters. ] System.Convert.FromBase64Str…
Xamarin开发安装Visual Studio 2015 update2报错的解决办法错误信息:update 2 requires a member of the visual studio 2015 family当在没有安装VS 2015的电脑上安装update 2包,就会出现这个错误.所以,安装的时候需要识别VS的安装文件.VS 2015的安装文件大约5GB,VS 2015 with update 2的安装文件是7GB.…
pom.xml里有红叉报错的解决办法一: 1.把鼠标点在报的错上发现pom.xml报如下错误: Multiple annotations found at this line: - Failure to transfer org.slf4j:slf4j-log4j12:jar:1.7.21 from http://repo1.maven.org/maven2 was cached in the local repository, resolution will not be reattempte…
using Microsoft.VisualStudio.TestTools.UnitTesting; 如果该DLL应用的是 C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\PublicAssemblies\Microsoft.VisualStudio.QualityTools.UnitTestFramework.dll 版本为9.0.0.0 的话,则使用[ClassInitialize]会该方法必须是静态的公共方法,不返回值并且…
先上bug图片 bug说明:初装vue_cli3.0写了个组件,运行错误,显示如图, 代码提示:[Vue warn]: You are using the runtime-only build of Vue where the template compiler is not available. Either pre-compile the templates into render functions, or use the compiler-included build 思路:这里引用的是…
从旧的ADT迁移的新的ADT时, android 程序中res/values-v14/styles.xml报错: error: Error retrieving parent for item: No resource found that matches the given name :Theme.AppCompat.Light.DarkActionBar 解决办法:修改项目下的project-properties文件, 把下面这一行加入,指向新导入的support库(需要先导入这个库) an…