expected class --name before'(' token~ ProgressDlg

This error message indicates that there is a syntax error in the code and the compiler is expecting a class name before the opening parenthesis "(" in the code for a ProgressDlg.

To fix this error, you may need to check the code for any missing or incorrect class declarations, and ensure that the syntax is correct. It may also be helpful to review the documentation for the ProgressDlg class to ensure that it is being used correctly.

相关问题

pose_local_parameterization.h:8:1: error: expected class-name before ‘{’ token

This error message typically occurs in C++ when there is a syntax error in the code. In this case, it is indicating that there is an issue with the definition of a class in the file "pose_local_parameterization.h" on line 8.

The error message suggests that the opening curly brace '{' is unexpected, which might indicate that there is a missing or incorrect class name before it. This could be due to a typo or a missing header file that defines the class.

To fix this error, you should review the code on or before line 8 of the file and check for any syntax errors. Ensure that all classes are properly defined and that any necessary header files are included.

93 13 C:\Users\86139\Documents\c++\实验19.cpp [Error] expected class-name before '(' token

这个编译错误通常是因为在类的定义或声明中，使用了函数声明的语法。在 C++ 中，类的成员函数必须以类的定义或声明作为前缀，例如：

class MyClass {
public:
  void myMethod(); // 正确的类成员函数声明
};

void MyClass::myMethod() {
  // 方法实现
}

如果你在类的定义或声明中，使用了函数声明的语法，例如：

class MyClass {
public:
  void myMethod(); // 错误的函数声明语法
  {
    // 方法实现
  }
};

编译器会报错，提示你在函数声明中使用了错误的语法。要修复这个错误，你需要将函数实现移动到类的外部，并以类名为前缀，例如：

class MyClass {
public:
  void myMethod(); // 正确的函数声明语法
};

void MyClass::myMethod() {
  // 方法实现
}

这样就可以避免编译错误了。