diff --git a/.vscode/c_cpp_properties.json b/.vscode/c_cpp_properties.json
index 94dcc0a..43def6c 100644
--- a/.vscode/c_cpp_properties.json
+++ b/.vscode/c_cpp_properties.json
@@ -18,5 +18,5 @@
             "cppStandard": "c++17"
         }
     ],
-    "version": 3
+    "version": 4
 }
\ No newline at end of file
diff --git a/main.cpp b/main.cpp
index be1a971..ed9ff17 100644
--- a/main.cpp
+++ b/main.cpp
@@ -68,7 +68,7 @@ private:
 	VkDevice device;
 	VkSurfaceKHR surface;
 	VkQueue presentQueue;
-	VkSwapchainKHR swapChain;
+	VkSwapchainKHR swapChain = VK_NULL_HANDLE;
 	std::vector<VkImage> swapChainImages;
 	VkFormat swapChainImageFormat;
 	VkExtent2D swapChainExtent;
@@ -592,7 +592,9 @@ private:
 	}
 
 	void createGraphicsPipeline() {
+		std::cerr << "Loading vertex shader." << std::endl;
 		auto vertShaderCode = readFile("shaders/vert.spv");
+		std::cerr << "Loading fragment shader." << std::endl;
 		auto fragShaderCode = readFile("shaders/frag.spv");
 
 		VkShaderModule vertShaderModule;
@@ -736,9 +738,10 @@ private:
 
 	static std::vector<char> readFile(const std::string& filename) {
 		// Start reading at end of the file, as binary.
-		std::ifstream file(filename, std::ios::ate | std::ios::binary);
+		std::ifstream file(filename, std::ios::ate | std::ios::binary);	
 
 		if(!file.is_open()) {
+			std::cerr << "Error code: " << strerror(errno) << std::endl;
 			throw std::runtime_error("failed to open file!");
 		}