several times I tried installing fredo 6 and get these error messages any idea what is going wrong
I am still using the old pro 8 and it says it's compatible with it - I don't want to upgrade to newer ones because everything in tools will change to different shapes and different new look which will be difficult to adjust
the error message below that I get

can't convert Range into IntegerError Loading File Fredo6_!LibFredo6.rb
no implicit conversion to float from nilError Loading File Fredo6_FredoCorner.rb
no implicit conversion to float from nilError Loading File Fredo6_FredoScale.rb
no implicit conversion to float from nilError Loading File Fredo6_FredoTools.rb
no implicit conversion to float from nilError Loading File Fredo6_Souvenir.rb
no implicit conversion to float from nil