Conversion error.

[Ruby The Roobster]

On Thursday, 28 January 2021 at 01:01:36 UTC, Ruby The Roobster 
wrote:
> I don't know any explanation for the following error:
> std.conv.ConvException at D:\Programs\D\dmd2\windows\bin\..\..\src\phobos\std\conv.d(2437): Unexpected '\n' when converting from type LockingTextReader to type int

In addition, this only gives that exception when you enter 1 or 
2, so I don't know what is happening.