ch 9 cucumber book childprocess gem error

I can't seem to get my final test to pass in chapter 9 in the cucumber book dealing with flickering scenarios. Since I am developing on Windows, it says that I should use the poor man's service manager work around which is using the childprocess gem, and skip the service_manager gem steps. After I do this, the test still do not pass and I'm getting the error:  Unknown error (Windows says "The operation completed successfully.", but it did not.) (ChildProcess::Error). Did anyone find a work around for this error?

Ch 2 Cucumber book no such method "success?"

I kept getting this error from section 2.5 in the cucumber book. turns out, for the code @output = `ruby calc.rb #{@input}` you must make sure you are using backticks `  instead of just ticks  ' . I thought it was just the font of the book that made the ticks look different.