Try this to fix Appveyor
#ifndef INCLUDE_GUARD_CUPY_TYPE_DISPATCHER_H
#define INCLUDE_GUARD_CUPY_TYPE_DISPATCHER_H
-#include <stdexcept>
#include "./complex.cuh"
+#include <stdexcept>
#if (__CUDACC_VER_MAJOR__ > 9 || (__CUDACC_VER_MAJOR__ == 9 && __CUDACC_VER_MINOR__ == 2)) \
&& (__CUDA_ARCH__ >= 530 || !defined(__CUDA_ARCH__))
#include <cuda_fp16.h>
