c# - "Could not find a part of the path" error message

Question

I am programming in c# and want to copy a folder with subfolders from a flash disk to startup.

Here is my code:

private void copyBat()
{
    try
    {
        string source_dir = "E:\Debug\VipBat";
        string destination_dir = "C:\Users\pc\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup";

        if (!System.IO.Directory.Exists(destination_dir))
        {
            System.IO.Directory.CreateDirectory(destination_dir);
        }       

        // Create subdirectory structure in destination    
        foreach (string dir in Directory.GetDirectories(source_dir, "*", System.IO.SearchOption.AllDirectories))
        {
            Directory.CreateDirectory(destination_dir + dir.Substring(source_dir.Length));          
        }

        foreach (string file_name in Directory.GetFiles(source_dir, "*.*", System.IO.SearchOption.AllDirectories))
        {
            File.Copy(file_name, destination_dir + file_name.Substring(source_dir.Length), true);
        }
    }
    catch (Exception e)
    {
        MessageBox.Show(e.Message, "HATA", MessageBoxButtons.OK, MessageBoxIcon.Warning);
    }
}

I got an error:

Could not find a part of the path E:DebugVipBat

Answer 1

The error is self explanatory. The path you are trying to access is not present.

string source_dir = "E:\Debug\VipBat\{0}";

I'm sure that this is not the correct path. Debug folder directly in E: drive looks wrong to me. I guess there must be the project name folder directory present.

Second thing; what is {0} in your string. I am sure that it is an argument placeholder because folder name cannot contains {0} such name. So you need to use String.Format() to replace the actual value.

string source_dir = String.Format("E:\Debug\VipBat\{0}",variableName);

But first check the path existence that you are trying to access.