Note that you must delete the empty file you currently have in place. You either don't have file with taht name or have file with data. empty file with the same name will not work
If you can't explain it to a six year old, you don't understand it yourself, Albert Einstein
How to Ask Questions The Smart Way: link and another link
Create MCV example
Debug small programs
How to Ask Questions The Smart Way: link and another link
Create MCV example
Debug small programs