在null上调用了方法'toDouble‘。接收者:空,已尝试调用: toDouble()..............................................................................The following NoSuchMethodError was thrown building Body(dirty):
The method 'toDouble' was called o
但在我的应用程序中,我想要一次性登录,在我的情况下,当我登录到我的应用程序时,我可以成功登录,但当我从内存中清除应用程序,然后再次打开它,然后第一次显示闪屏后,它将显示此错误:"No Such MethodError: The method '+' was called on null.Receiver: null Tried calling: +(" ")."我尝试了堆栈溢出的许多解决方案,但我无法获得确切的解决方案。createState() => _S
我对golang很陌生,并且尝试使用gin + gorm来制作API服务器。我试图构建下面的代码,但是我得到了type *gorm.DB has no field or method GetUsers错误。() []*User { has, _ := db.GetUsers(&users) return users}}
我在GetUsers()中实现了controller