Move the
const std::string MainController::SOME_URL = "www.google.com";
to a cpp file. If you have it in a header, then every .cpp that includes it will have a copy and you will get the duplicate symbol error during the link.
Related Posts:
- What is the difference between private and protected members of C++ classes?
- C++ [Error] no matching function for call to
- C++ variable has initializer but incomplete type?
- C++ – No appropriate default constructor available
- What is predicate in C++?
- Understanding Python super() with __init__() methods [duplicate]
- Is it possible to make abstract classes in Python?
- Expression must have class type
- When should you use a class vs a struct in C++?
- Using two CSS classes on one element
- c++ “Incomplete type not allowed” error accessing class reference information (Circular dependency with forward declaration)
- Why is enum class preferred over plain enum?
- How to fix a “invalid operands to binary expression” error?
- How to assign multiple classes to an HTML container?
- What does ‘super().__init__()’ mean in python 3.x?
- How to assign multiple classes to an HTML container?
- Why am I getting this redefinition of class error?
- Single class has a Class Redefinition Error
- C++ Linked List Node with class
- Error with multiple definitions of function
- (->) arrow operator and (.) dot operator , class pointer
- Python: How do I make a subclass from a superclass?
- Separating class code into a header and cpp file
- how to define -std=c++11 as default in g++
- Pointer to incomplete class type is not allowed
- Why am I getting this redefinition of class error?
- Difference between ‘cls’ and ‘self’ in Python classes?
- no default constructor exists for class
- Getting error “a nonstatic member reference must be relative to a specific object” while both member are in the same class
- Error “C++ requires a type specifier for all declarations whilst defining methods”
- What are the differences between struct and class in C++?
- error C2011: ” : ‘class’ type redefinition
- The compiler is complaining about my default parameters?
- C++ Linked List Node with class
- Getting error: ISO C++ forbids declaration of with no type
- “used without template parameters”
- expected constructor, destructor, or type conversion before ‘(’ token
- C++ Class ‘undeclared identifier”
- c++ “Incomplete type not allowed” error accessing class reference information (Circular dependency with forward declaration)
- Base class undefined
- Warning: non-static data member initializers only available with -std=c++11 or -std=gnu++11?
- What is the meaning of a C++ Wrapper Class?
- Does C++11 have C#-style properties?
- G++ undefined reference to class::function
- Creating an instance of class
- How do you implement a class in C?
- uml classdiagram constructor with parameters
- expected primary-expression before ‘]’ token
- Does C have classes?
- error C2039: ‘string’ : is not a member of ‘std’, header file problem
- istream and ostream problem – C++
- Struct with template variables in C++
- error: no member function declared in class
- Here is some error with my .h file which show [Error] unterminated #ifndef when I include my class template in it
- Error: invalid use of member in static member function
- What does the variable $this mean in PHP?
- Iterate through a C++ Vector using a ‘for’ loop
- ‘was not declared in this scope’ error
- Simple dictionary in C++
- How do I resolve ClassNotFoundException?
- How to reverse an std::string? [duplicate]
- What is the point of “final class” in Java?
- What is the C version of RMI
- Difference between ‘strcpy’ and ‘strcpy_s’?
- What is uintptr_t data type
- Using “super” in C++
- unsigned int vs. size_t
- How do I clear a C++ array?
- How can I open Java .class files in a human-readable way?
- error: expected primary-expression before ‘)’ token (C)
- What does -> mean in C++?
- Right way to split an std::string into a vector
- Enhanced FOR loops in C++
- string subscript out of range error
- push_back vs emplace_back
- No operator << matches these operands
- Returning an empty string : efficient way in c++
- How to find the size of an int[]?
- Append an int to a std::string
- Decimal to hex conversion c++ built-in function
- How to reference nested classes with css?
- C++ IDE with repl?
- How to extend a class in python?
- Reading from .txt file into two dimensional array in c++
- C++ Error ‘nullptr was not declared in this scope’ in Eclipse IDE
- C++ Simple hangman game
- “The system cannot find the file specified” when running C++ program
- Error: free(): invalid next size (fast):
- Fastest way to Convert String to Binary?
- Reading data from file into an array
- LINK : fatal error LNK1561: entry point must be defined ERROR IN VC++
- How to print (using cout) a number in binary form?
- What is the job of autogen.sh when building a c++ package on Linux
- Using G++ to compile multiple .cpp and .h files
- LPCSTR, LPCTSTR and LPTSTR
- Why can’t I make a vector of references?
- Is there a way to simulate the C++ ‘friend’ concept in Java?
- What does “-Wall” in “g++ -Wall test.cpp -o test” do?
- What does ‘return *this’ mean in C++?
- C++ equivalent of StringBuffer/StringBuilder?