Unreal build tool missing

[TheGoldenGuy]

I am in bull cows section and for some reason I can’t compile my project I am on UE 4.27

[Suryansh]

Will you please upload a screenshot of your error and also upload your code. It will help to understand the error?

[TheGoldenGuy]

cpp

// Fill out your copyright notice in the Description page of Project Settings.
#include "BullCowCartridge.h"
#include "HiddenWordList.h"

void UBullCowCartridge::BeginPlay() // When the game starts
{
	Super::BeginPlay();
    GetValidWords(Words);
    SetupGame();

    PrintLine(TEXT("This is the amount of right words possible: %i"), GetValidWords(Words).Num());
    PrintLine(TEXT("This is the amount of words possible: %i"), Words.Num());

}

void UBullCowCartridge::OnInput(const FString& Input) // When the player hits enter
{
    if (bGameOver == true)
	{
		ClearScreen();
		SetupGame();
	}

	else
	{
		ProcessGuess(Input);
	}
}

// Check if isogram
// Check right number of characters
// Remove life
// If all lives lost, prompt for guess again
	// Show lives left
// Else print game over and HiddenWord
	// Prompt to play again, Press enter to play again?
	// If  yes, set hidden word and lives
	// Else quit game

void UBullCowCartridge::SetupGame()
{
    for (int32 Index = 0; Index <= GetValidWords(Words).Num(); Index++)
    {
        HiddenWord = GetValidWords(Words)[Index];
    }
	Lives = HiddenWord.Len();
	bGameOver = false;
	PrintLine(TEXT("Welcome To Bull Cow Game")); //Prints Welcome Message
	PrintLine(TEXT("The HiddenWord Is %i Charecters Long"), HiddenWord.Len()); //remove the hardcoded 4 later
	PrintLine(TEXT("Type in your guess and \npress enter to continue..."));
	PrintLine(TEXT("You Have %i Lives"), Lives);

    

    //const TCHAR HW[] = TEXT("plums");
    //PrintLine(TEXT(%c), HW[0]); p should be printed out
    //PrintLine(TEXT(%c), HW[3]); m should be the one appearing.

    
}

void UBullCowCartridge::EndGame()
{
	bGameOver = true;
    PrintLine(TEXT("Press Enter To Play Again"));
}


bool UBullCowCartridge::isIsogram(FString word)
{
    for (int i = 0, comparing_letter = i+1; comparing_letter < word.Len() - 1; comparing_letter++)
    {
        if (word.IsValidIndex(comparing_letter))
        {
            if (word[i] == word[comparing_letter])
            {
                return false;
            }
        }
    }

    return true;
}

void UBullCowCartridge::ProcessGuess(FString Guess)
{

    // Check if the PlayerGuess is the HiddenWord

    if (Guess == HiddenWord)
    {
        // The Player wins the game

        ClearScreen();

        PrintLine(TEXT("You guessed the word!"));

        PrintLine(TEXT("The hidden word is: %s."), *HiddenWord);

        PrintLine(TEXT("YOU WIN!"));

        EndGame();

        return;

    }

    if (Guess != HiddenWord)
    {

        // Clear terminal

        ClearScreen();

        // Print messages for the player telling about the mistake in the guess

        PrintLine(TEXT("Ooh sorry your guess is not correct! Hint:The hidden word has %i letters."), HiddenWord.Len());

        // Remove a life since the player missed in the guess

        PrintLine(TEXT("You lost a life. Now you have %i lives."), --Lives);

        if (Guess.Len() != HiddenWord.Len())
        {

            PrintLine(TEXT("Please remember that\nthe hidden word has %i letters."), HiddenWord.Len());

        }

        if (!isIsogram(Guess))
        {
            PrintLine(TEXT("This word has repeating letters!"));
        }

        if (Lives == 0)
        {
            PrintLine(TEXT("The Hiddenword was %s"), *HiddenWord);
            PrintLine(TEXT("Press Enter To Play Again"));
            EndGame();


        }
        

    }

}

TArray<FString> UBullCowCartridge::GetValidWords(TArray<FString> WordList)
{
    TArray<FString> Valid_Words;
    for (int32 Index = 0; Index < Words.Num(); Index++)
    {
        if (WordList[Index].Len() >= 4 && WordList[Index].Len() <= 8)
        {
            if (isIsogram(WordList[Index]))
            {
                Valid_Words.Emplace(WordList[Index]);
            }
        }
    } 
}

header

#pragma once

#include "CoreMinimal.h"
#include "Console/Cartridge.h"
#include "BullCowCartridge.generated.h"

UCLASS(ClassGroup=(Custom), meta=(BlueprintSpawnableComponent))
class BULLCOWGAME_API UBullCowCartridge : public UCartridge
{
	GENERATED_BODY()

	public:
	virtual void BeginPlay() override;
	virtual void OnInput(const FString& Input) override;
	void SetupGame();
	void EndGame();
	void ProcessGuess(FString Guess);
	bool isIsogram(FString Word);
	TArray<FString> GetValidWords(TArray<FString> WordList);

	// Your declarations go below!
	private:
	
	FString HiddenWord;
	int32 Lives;
	bool bGameOver;
	
};

the hiddenword list is the same as show in the course and since it is 1000 words long I will not post it.

[TheGoldenGuy]

no worries I solved the error

[Suryansh]

ok

[Suryansh]

well, what was the error?

[Suryansh]

You were not returning any TArray in the GetValidWords, Is it?

[TheGoldenGuy]

Yes