# Undefined method error appears in erb but not haml

**URL:** <https://www.ruby-forum.com/t/undefined-method-error-appears-in-erb-but-not-haml/184294>\
**Category:** Rails\
**Created:** [February 28, 2010, 2:01pm UTC](https://www.ruby-forum.com/t/undefined-method-error-appears-in-erb-but-not-haml/184294 "2010-02-28T14:01:17Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![jmaenpaa](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/9de053/32.png) [@jmaenpaa](https://www.ruby-forum.com/u/jmaenpaa)\
**Post date:** [February 28, 2010, 2:01pm UTC](https://www.ruby-forum.com/t/undefined-method-error-appears-in-erb-but-not-haml/184294/1 "2010-02-28T14:01:17Z")

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Hey all,  
All I wanted to do was convert a haml file to erb. After doing so, i get  
an undefined method `render\_sequence\_nav’ error message. Even though no  
such error happened when it was in haml format. I believe the culprit is  
this line which I am converting incorrectly:

#fields \<\< render\_sequence\_nav(sequence\_info, students\_path)

I converted it to this:  
\<%

 fields 
 \<\<  
render\_sequence\_nav(sequence\_info,  
students\_path) %\>

## But Rails says " syntax error, unexpected ‘\<’, expecting kEND ; fields … " Thanks for any suggestions.

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---

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**Author:** ![jmaenpaa](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/9de053/32.png) [@jmaenpaa](https://www.ruby-forum.com/u/jmaenpaa)\
**Post date:** [February 28, 2010, 2:19pm UTC](https://www.ruby-forum.com/t/undefined-method-error-appears-in-erb-but-not-haml/184294/2 "2010-02-28T14:19:26Z")

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On 28 February 2010 13:00, JohnMerlino [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:

> I converted it to this:  
> \<%
> 
> fields 
> \<\< render\_sequence\_nav(sequence\_info,

\<%= render\_sequence\_nav(sequence\_info, students\_path) %\>