What are the reasons causing C++ program to not start?

There could be several reasons why C++ is unable to start the program:

1. Compilation error: During the compilation process of a C++ program, errors occurred, preventing the creation of an executable file. In this situation, it is necessary to check for syntax errors, missing library files, and other issues in the code.
2. Runtime error: A C++ program encounters an error during execution, preventing it from running properly. This could be due to logic errors, illegal memory access, or array out of bounds issues.
3. Missing dependencies: The C++ program cannot run properly because it is missing the necessary library files or other resources it depends on. This could be due to incorrect installation of the library files, incorrect path settings, or other reasons.
4. System environment issue: The C++ program cannot run properly in specific system environments. This could be due to reasons such as incompatible operating system versions or mismatched runtime libraries.
5. Permission issue: The lack of sufficient permissions for the files or directories required by the C++ program is preventing it from starting. This could be due to inadequate user permissions or incorrect file permission settings.
6. Hardware issue: The C++ program is unable to run properly in a specific hardware environment, possibly due to reasons such as hardware incompatibility or malfunctions.

Here are some common reasons why a C++ program may not start, and the specific cause needs to be investigated based on the actual situation.