C/C++ :: Error C237 Identifier - Redefinition Different Basic Types

I am having this error where it declares two of the same identifier, but I cannot figure it out.

Error C237 states:

The identifier is already declared.

Example

// C2371.cpp
int main() {
int i;
float i; // C2371, redefinition
float f; // OK
}

Though in my code I cannot find a redefinition anywhere.

texturemanager.h
#ifndef TEXTUREMANAGER_H
#define TEXTUREMANAGER_H
#include <SDL.h>
#include <SDL_image.h>
#include <iostream>
#include <string>

[Code] ....

My complete Error states as this:

Error3error C2371: 'TextureManager::load' : redefinition; different basic type line:4
Error2error C2556: 'TextureManager TextureManager::load(std::string,int,int,int,int,SDL_Renderer
*,SDL_RendererFlip)' : overloaded function differs only by return type from 'bool TextureManager::load(std::string,int,int,int,int,SDL_Renderer *,SDL_RendererFlip)' line: 4
Error1error C2628: 'TextureManager' followed by 'bool' is illegal (did you forget a ';'?) line:3

IDE: Visual Studio 2012