问“错误：'value‘重新声明为不同类型的符号”，即使它从未被重新声明过

EN

    char board[4][4];
    printf("Would you like to play a game of tic-tac-toe? (Y or N)\n");
    scanf("%c", &start);
    while(start!=N && start!=n){
        void clearField(char board[4][4]);
        void printField(char board[4][4]);
    }
}
void clearField(char board[4][4]){
    char board[4][4]={{ ,0,1,2},{0,_,_,_},{1,_,_,_},{2,_,_,_}};
}