Undefined symbols for architecture arm64: “_main”, referenced from: implicit entry/start for main executable ld: symbol(s) not found for architecture arm64 clang: error: linker command failed with exit code 1 (use -v to see invocation)

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      undefined symbols for architecture arm64: "_main", referenced from: implicit entry/start for main executable ld: symbol(s) not found for architecture arm64 clang: error: linker command failed with exit code 1 (use -v to see invocation)

This error message is related to a linking issue in the architecture arm64. It indicates that the linker was unable to find the “_main” symbol referenced in the code.

The “_main” symbol typically refers to the entry point of a program, where the execution starts. In this case, it seems that the linker was unable to find the main function in your code. This function is required for every C or C++ program as it acts as the starting point for execution.

To resolve this error, you need to ensure that your code includes a valid main function. Here’s an example of a simple C program with a main function: 

    
      #include <stdio.h>
      
      int main() {
          printf("Hello, World!");
          return 0;
      }

In the above example, we have included the standard input/output header file stdio.h. The main function simply prints “Hello, World!” to the console and returns 0 indicating successful execution. Make sure your code follows a similar structure with a valid main function.

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