Variable or Field Declared Void

variable or field declared void

It for example happens in this case here:

void initializeJSP(unknownType Experiment);

Try using std::string instead of just string (and include the <string> header). C++ Standard library classes are within the namespace std::.

Variable or field '...' declared void Error on Ardunio Compiler

For future reference

I got an answer from another forum. The problem is with The Arduino IDE's auto-prototype generation.

This solves the problem.

void manuer(PlaneStatus ms);

void manuer(PlaneStatus ms) {
  ms.pitch;
}

Variable or field declared void C++

Restarting the terminal has somehow solved this error. I got another error this time, which I solved already. I missed the destructor. It stood in the header file, but not in the cpp file.

Buggy terminals...

variable or field (function) declared void

The compiler thinks that you're declaring a variable named matrixMultiplication, which is initialised with the parameters you gave and whose type is void.

You can't create a variable of type void.

You shouldn't specify the return type when you call a function, so remove the void:

matrixMultiplication (matrix1, matrix2, rowOfMatrix1, columnOfMatrix2, finalMatrix);

Error: variable or field 'PrintEntity' declared void void PrintEntity(Entity e);

Declare the function before the class definition like

void PrintEntity( class Entity* e);

using the elaborated type specifier.

Otherwise the compiler does not know what is Entity.

variable or field 'Function' declared void

void Skaiciavimai(kiek_bulviu, talkininkai, dienos, visi_talkininkai, viso_bulviu, vieno_vidurkis);

Remove the leading void. You do not need to specify the return type of functions you call. Adding a return type makes it a function declaration. It should look like this :

Skaiciavimai(kiek_bulviu, talkininkai, dienos, visi_talkininkai, viso_bulviu, vieno_vidurkis);

Edit: For clarity, I've annotated the initial example.

int main()
{
    double atsk = 100, bulves[100], talk[1000], kiek_bulviu = 0, talkininkai = 0;
    int dienos = 0, visi_talkininkai = 0;
    double viso_bulviu = 0, vieno_vidurkis = 0;

    for (int i = 0; i < 1000; i++) {
        cin >> bulves[i];
        kiek_bulviu = kiek_bulviu + bulves[i];
        if (bulves[i] == 0) {
            i = 1000;
        }
        else {
            cin >> talk[i];
            talkininkai = talkininkai + talk[i];
            dienos++;
        }
    }

    /*void*/ Skaiciavimai(kiek_bulviu, talkininkai, dienos, visi_talkininkai, viso_bulviu, vieno_vidurkis);
//    ^^^^ Remove this void

    cout << dienos << endl;
    cout << viso_bulviu;
    cout << vieno_vidurkis;
    return 0;
}