Hi, I am new to Xcode and C++. I created a helloword project and the main.cpp file is created automatically. #include <iostream> int main(int argc, const char * argv[]) {   // insert code here...   std::cout << "Hello, World!\n";   return 0; } I tried to run this program by clicking the Run under Product. It said "Compile Successfully" but then I ran into Thread 1: EXC_BAD_ACCESS (code=2, address=0x7fff23947cb1) and the program remained on running without termination. I'm using BigSur (11.2) and I can run the code in command line with >>> c++ main.cpp >>> ./a.out Hello World! but cannot run this code inside Xcode. Any idea why this is happening? Thank you for helping!