VisualStudio 2017: Syntax error missing ':' before '^' - winforms

Question

I have the following:
FileReader.cpp
#include "FileReader.h"
#include "FileData.h"
using namespace System;
using namespace System::IO;
FileReader::FileReader(){}
System::Void FileReader::readFile(System::String^ fileName) {
this->_fileName = fileName;
Console::WriteLine("Opening: " + _fileName);
try {
StreamReader^ fileIn = File::OpenText(_fileName);
System::String^ input;
int count = 0;
while ((count < 10 && (input = fileIn->ReadLine()) != nullptr)) {
Console::WriteLine(input);
count++;
}
}
catch (FileNotFoundException^ e) {
Console::WriteLine("FileNotFound");
}
}
FileReader.h
#pragma once
ref class FileReader
{
public:
FileReader();
FileData^ fData = gcnew FileData(); // This is whats causing the errors.
System::String^ _fileName;
System::Void readFile(System::String^ fileName);
};
FileData.cpp
#include "FileData.h"
FileData::FileData(){}
System::Void FileData::Set_DataName(System::String^ dName)
{
this->dataName= dName;
}
FileData.h
#pragma once
using namespace System;
ref class FileData
{
public:
FileData();
System::String^ dataName;
System::Void Set_PlayerName(System::String^ dName);
};
Problem I'm having is the compiler returns big list of errors when trying to create the FileData object in FileReader.h
Error C2143 syntax error: missing ';' before '^'
Error C4430 missing type specifier - int assumed. Note: C++ does not support default-int
Error C2238 unexpected token(s) preceding ';'
Error C2143 syntax error: missing ';' before '^'
Error C4430 missing type specifier - int assumed.
Error C2238 unexpected token(s) preceding ';'
Error C2143 syntax error: missing ';' before '^'
Error C4430 missing type specifier - int assumed.
Error C2238 unexpected token(s) preceding ';'
I know its probably something simple I've missed but I can't figure out what I've done wrong. Anyone able to help?