# Merge error?

**URL:** <https://www.ruby-forum.com/t/merge-error/134349>\
**Category:** Rails\
**Created:** [April 10, 2008, 12:19am UTC](https://www.ruby-forum.com/t/merge-error/134349 "2008-04-10T00:19:27Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![edberner](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/e/f9ae1b/32.png) [@edberner](https://www.ruby-forum.com/u/edberner)\
**Post date:** [April 10, 2008, 12:19am UTC](https://www.ruby-forum.com/t/merge-error/134349/1 "2008-04-10T00:19:27Z")

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When I write this line  
\<%= round\_form.select :round, :action, [“a”, “b”, “c”, “d”] %\>

I get this. What gives?  
undefined method `merge’ for [“a”, “b”, “c”, “d”]:Array