redefinition errors

#include <cstdint>
#include <winnt.h>


typedef enum _requests
{
    CRBON_start,
    CRBON_base,
    CRBON_read,
    //invoke_read_large,
    CRBON_write,
    CRBON_resolve_dtb,
    CRBON_peb,

    CRBON_success,
    CRBON_unique,
    CRBON_unload,
}requests, * prequests;

struct m_read_info
{
    uintptr_t address;
    void* buffer;
    size_t size;
};

typedef struct _read_invoke
{
    //bool pool;
    uint32_t pid;
    uintptr_t address;
    void* buffer;
    size_t size;
} read_invoke, * pread_invoke;

typedef struct _write_invoke
{
    uint32_t pid;
    uintptr_t address;
    void* buffer;
    size_t size;
} write_invoke, * pwrite_invoke;

typedef struct _dtb_invoke
{
    uint32_t pid;
    bool operation;
} dtb_invoke, * pdtb_invoke;

typedef struct _base_invoke
{
    uint32_t pid;
    uintptr_t handle;
    const char* name;
    size_t size;
} base_invoke, * pbase_invoke;

typedef struct _peb_invoke
{
    uint32_t pid;
    ULONGLONG handle;
} peb_invoke, * ppeb_invoke;

typedef struct _invoke_data
{
    uint32_t unique;
    requests code;
    void* data;
}invoke_data, * pinvoke_data;

im getting redefinition errors even tho these are the only refereneses is this a visual studio problem?