'uint32_t' does not name a type

Question

I'm trying to compile a C++ software package that was written in 2007 and I'm getting this error:

error: ‘uint32_t’ does not name a type

This is happening in 64-bit Ubuntu using g++ 4.5.2. It compiles fine on 64-bit CentOS using g++ 4.1.2.

Is there an #include or a compiler flag that I'm missing? Or, should I use typedef to assign uint32_t to a size_t or maybe an unsigned int?

Answer 1

if it happened when you include opencv header.

I would recommand that change the order of headers.

put the opencv headers just below the standard C++ header.

like this:

#include<iostream>
#include<opencv2/core/core.hpp>
#include<opencv2/highgui/highgui.hpp>