name followed by '::' must be a class or namespace name

[Foreignprince80]

Hey Y’all, I’ve been following this tutorial: https://youtu.be/uZPzTN5Debc
But at around 6:52, I get this error:
name followed by ‘::’ must be a class or namespace name
It’s referring to this piece of code here:

Here is my .cpp file:

// Fill out your copyright notice in the Description page of Project Settings.


#include "SaveFileSystem.h"
#include "Misc/FileHelper.h"
#include "HAL/PlatformFilemanager.h"


bool USaveFileSystem::SaveArray(FString SaveDirectory, FString FileName, TArray<FString> SaveText, bool bAllowOverriding = false)
{
    // Set The File Path
    SaveDirectory += "\\";
    SaveDirectory += FileName;

    if(!bAllowOverriding)
    {
        if(PlatformFileManager::Get().GetPlatformFile().FileExists(*SaveDirectory))
        {
            return false;
        }
    }
}

And here is my .h file:

// Fill out your copyright notice in the Description page of Project Settings.

#pragma once

#include "CoreMinimal.h"
#include "Kismet/BlueprintFunctionLibrary.h"
#include "SaveFileSystem.generated.h"

/**
 * 
 */
UCLASS()
class RHYTHM_RUMBLE_API USaveFileSystem : public UBlueprintFunctionLibrary
{
	GENERATED_BODY()
	
	UFUNCTION(BlueprintCallable, Category="FileSystem", meta = (Keywords = "Save"))
		static bool SaveArray(FString SaveDirectory, FString FileName, TArray<FString> SaveText, bool bAllowOverriding);
};

This project started out as a blueprint project, if that means anything.

[Ravi80335]

• It’s not a PlatformFileManager, it is FPlatformFileManager
• put F in that

[Foreignprince80]

Yes that was it! Tysm!!