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Editorial Team
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Asked: 2026-06-03T13:27:08+00:00

I have used the sudo gem install spreadsheet to install the spreadsheet in Mac

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I have used the “sudo gem install spreadsheet” to install the spreadsheet in Mac OS X 10.7.
But when I run an example it can not run successfully.

/Users/dearkx/.rvm/gems/ruby-1.9.3-p0/gems/spreadsheet-0.7.1/lib/spreadsheet/excel/writer/workbook.rb:189: warning: assigned but unused variable - len
/Users/dearkx/.rvm/gems/ruby-1.9.3-p0/gems/spreadsheet-0.7.1/lib/spreadsheet/excel/writer/workbook.rb:527: warning: assigned but unused variable - bef
/Users/dearkx/.rvm/gems/ruby-1.9.3-p0/gems/spreadsheet-0.7.1/lib/spreadsheet/excel/writer/worksheet.rb:292: warning: assigned but unused variable - len
/Users/dearkx/.rvm/gems/ruby-1.9.3-p0/gems/spreadsheet-0.7.1/lib/spreadsheet/excel/writer/worksheet.rb:599: warning: assigned but unused variable - links
/Users/dearkx/.rvm/gems/ruby-1.9.3-p0/gems/ruby-ole-1.2.11.3/lib/ole/storage/base.rb:232: warning: assigned but unused variable - before
/Users/dearkx/.rvm/gems/ruby-1.9.3-p0/gems/ruby-ole-1.2.11.3/lib/ole/types/property_set.rb:36: warning: assigned but unused variable - map
/Users/dearkx/.rvm/gems/ruby-1.9.3-p0/gems/ruby-ole-1.2.11.3/lib/ole/storage/meta_data.rb:79: warning: assigned but unused variable - compobj_version
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1 Answer

  1. Editorial Team

    They’re just warnings, not errors. They just indicate things in the gem that the programmer shouldn’t do, but Ruby will still execute the code.

    These warnings were added in 2010, which might explain why it didn’t appear in Ruby 1.8.7.

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