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C# C# Basics (Retired) Console I/O Namespaces

koren lahav
koren lahav
963 Points
Posted by koren lahav
koren lahav
963 Points

why when i write mono Program.cs it saying File does not contain a valid CIL image.

why when i write mono Program.cs it saying File does not contain a valid CIL image.

here the code: class Program { static void Main() { // Prompt user for minutes exercised System.Console.Write("Enter how many minutes you exercised: ");

  string entry = System.Console.ReadLine(); 

  System.Console.Write(entry);

    // Add minutes exercised to total 
    // Display total minutes exercised to the screen 
    // Repeat until user quits    
}

}

2 Answers

Steven Parker
Steven Parker
229,744 Points
Steven Parker
Steven Parker
229,744 Points

:point_right: You might be using the wrong command for that file type.

To compile a C# source file, you would use the command: "mcs Program.cs". If the compilation is successful, it would create a CIL image file named "Program.exe".

Then to run that compiled output file you would use: "mono Program.exe".

Ron Lemke
Ron Lemke
2,037 Points
Ron Lemke
Ron Lemke
2,037 Points

I had the same problem, but after I logged out of treehouse and came back in, the problem was gone. Not sure what part of that fixed the problem, but it worked for me.