vkCreateInstance access violation at VKLayer_device_simulation.dll - vulkan

Question

i'm new to vulkan.
when i call vkCreateInstance() , it crash , but i can't figure out what's the problem.
vkenumerateExtensionProperties return 0 extensoin count,and only VKLayer_LUNARG_api_dump found , it is weird .
core code are following , irrelevant code are removed.
Instance_Vulkan
#pragma once
#ifndef INSTANCE_VULKAN_HPP
#define INSTANCE_VULKAN_HPP
#include <vulkan/vulkan.h>
#include <vector>
#include <string>
#include <exception>
#include <iostream>
using namespace std;
namespace LB
{
class Instance_Vulkan
{
public:
bool isCreated = false;
VkInstance instance;
VkInstanceCreateInfo createInfo;
std::vector<const char*> extensions;
std::vector<const char*> layers;
Instance_Vulkan()
{
createInfo.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
createInfo.flags = 0;
createInfo.pNext = NULL;
createInfo.pApplicationInfo = NULL;
createInfo.enabledLayerCount = 0;
createInfo.ppEnabledLayerNames = NULL;
createInfo.enabledExtensionCount = 0;
createInfo.ppEnabledExtensionNames = NULL;
}
VkResult creat(const VkAllocationCallbacks* pAllocator=NULL)
{
if (isCreated)
return VK_SUCCESS;
else
{
VkResult result;
createInfo.enabledExtensionCount = static_cast<uint32_t>(extensions.size());
if(createInfo.enabledExtensionCount)
createInfo.ppEnabledExtensionNames = extensions.data();
createInfo.enabledLayerCount = static_cast<uint32_t>(layers.size());
if(createInfo.enabledLayerCount)
createInfo.ppEnabledLayerNames = layers.data();
if((result = vkCreateInstance(&createInfo, nullptr, &instance))!=VK_SUCCESS)
cout << "Error: fail to create Vulkan Instance ! " << endl;
if (result == VK_SUCCESS)
isCreated = true;
return result;
}
}
void destroy()
{
if (isCreated)
vkDestroyInstance(instance,nullptr);
isCreated = false;
}
};
}
#endif // !INSTANCE_VULKAN_HPP
following code invoke above class
#pragma once
#ifndef APPLICATION_HPP
#define APPLICATION_HPP
#include<vulkan/vulkan.h>
#include <iostream>
#include <stdexcept>
#include <cstdlib>
#define GLFW_INCLUDE_VULKAN
#include <GLFW/glfw3.h>
#include "Item.hpp"
#include"Window.hpp"
#include "Instance_Vulkan.hpp"
using namespace std;
namespace LB
{
class Application
{
public:
bool shouldClose = false;
virtual void mainLoop()
{
}
void init()
{
glfwInit();
glfwWindowHint(GLFW_CLIENT_API,GLFW_NO_API);
glfwWindowHint(GLFW_RESIZABLE, GLFW_FALSE);
initVulkan();
}
void initVulkan()
{
// set the application info
VkApplicationInfo appInfo = {};
appInfo.sType = VK_STRUCTURE_TYPE_APPLICATION_INFO;
appInfo.pApplicationName = "Hellp Triangle";
appInfo.applicationVersion = VK_MAKE_VERSION(1, 0, 0);
appInfo.pEngineName= "No Engine";
appInfo.engineVersion = VK_MAKE_VERSION(1, 0, 0);
appInfo.apiVersion = VK_API_VERSION_1_0;
appInfo.pNext = NULL;
// set papplicatoinInfo
instance.createInfo.pApplicationInfo = &appInfo;
if (instance.creat()!= VK_SUCCESS)
throw std::runtime_error("Error: fail to create vulkan instance ");
}
void cleanUp()
{
glfwTerminate();
instance.destroy();
}
int run(int argc=0,char* argv[]=0)
{
init();
try {
for (;!shouldClose;)
mainLoop();
}
catch (const std::exception e)
{
std::cerr << e.what() << std::endl;
return EXIT_FAILURE;
}
cleanUp();
return EXIT_SUCCESS;
}
private:
Instance_Vulkan instance;
};
}
#endif
there are main function
#include "pch.h"
#define GLFW_INCLUDE_VULKAN
#include <GLFW/glfw3.h>
#include "Application.hpp"
#include <iostream>
#include <cstdlib>
using namespace LB;
using namespace std;
int main()
{
Application app;
return app.run();
}
when i run the code,it crash
'result image'
My Environment:
Win10 debug 64bit
vs2017
Gtx 940m driver: 416.94
i install lunarg sdk 1.1.85.0 , run the cube.exe and also compile the demo successfully