wjw:layoutInScrollView username$ pod install Analyzing dependencies xcode-select: error: tool 'xcodebuild' requires Xcode, but active developer directory '/Library/Developer/CommandLineTools' is a command line tools instance ――― MARKDOWN TEMPLATE ―――…
mac 上运行cassandra出现的java.net.MalformedURLException: Local host name unknown: java.net.UnknownHostException: : : unknown error错误解决方法 运行: ./bin/cassandra 得到输出结果: objc[1881]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMach…
在进行unity游戏制作的C#代码编写时,会遇到“NullReferenceException: Object reference not set to an instance of an object”这样的错误提示.错误的意思翻译过来是“未将对象引用到对象的实例”,意思就是声明了对象,却没有给它赋值,导致运行的时候依旧是null值.个人遇到这个情况是在获取控件的时候,原代码为: “text1 = GetControl(“Content/Main/Body/Mail1/Text”);” 出错的…