Answers.Body: <p>You're running <a href="https://craftcms.com/changelog#build2771" rel="nofollow">Craft 2.6+</a> and you've got an older version of the <a href="https://github.com/pixelandtonic/RedactorI" rel="nofollow">Redactor I</a> plugin installed that isn't Craft 2.6 compatible.  If you <a href="https://github.com/pixelandtonic/RedactorI/archive/1.1.0.zip" rel="nofollow">download the latest</a> version of the plugin and install it, the error will go away and Redactor I will work as usual.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-03-13T02:30:18.060Z
Answers.Text: Brad Bell... you the man!!!
Answers.UserDisplayName: Jennifer Grant
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-03-13T02:21:12.743Z
Answers.LastActivityDate: 2016-03-13T02:21:12.743Z
Answers.UserDisplayName: Brad Bell
Body: <p>I am trying to edit fields.  When I go to <code>Settings-&gt;Fields</code> and then click on a field, I get a message that reads:</p>
  
  <pre><code>Internal Server Error
  
  Craft\Model and its behaviors do not have a method or closure named "availableAssetSources".
  </code></pre>
  
  <p>Then I looked in the utility logs under server info, it reads:</p>
  
  <pre><code>Level:  error
  Category:   exception.Twig_Error_Runtime
  Message:    exception 'CException' with message 'Craft\Model and its behaviors do not have a method or closure named "availableAssetSources".' in /home/christen/6989-CLG-Web/craft/app/framework/base/CComponent.php:266
  </code></pre>
  
  <p>I am including the code written on line 266, in case it helps:</p>
  
  <pre><code>throw new CException(Yii::t('yii','{class} and its behaviors do not have a method or closure named "{name}".',
  </code></pre>
  
  <p>What does all of this mean and how can I fix it?</p>
  
  <p>Thank you so much!</p>
  
Tags: <field><error-message><error><server>
Title: Internal Server Error
ThreadText: # Internal Server Error
  
  (Asked by: username_0 on 2016-03-13)
  
  I am trying to edit fields. When I go to `Settings->Fields` and then click on a field, I get a message that reads:
  
  ```
  Internal Server Error
  
  Craft\Model and its behaviors do not have a method or closure named "availableAssetSources".
  
  ```
  
  Then I looked in the utility logs under server info, it reads:
  
  ```
  Level:  error
  Category:   exception.Twig_Error_Runtime
  Message:    exception 'CException' with message 'Craft\Model and its behaviors do not have a method or closure named "availableAssetSources".' in /home/christen/6989-CLG-Web/craft/app/framework/base/CComponent.php:266
  
  ```
  
  I am including the code written on line 266, in case it helps:
  
  ```
  throw new CException(Yii::t('yii','{class} and its behaviors do not have a method or closure named "{name}".',
  
  ```
  
  What does all of this mean and how can I fix it?
  
  Thank you so much!
  
  **Tags:** field, error-message, error, server
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2016-03-13. Score: 2
  
  You're running [Craft 2.6+](https://craftcms.com/changelog#build2771) and you've got an older version of the [Redactor I](https://github.com/pixelandtonic/RedactorI) plugin installed that isn't Craft 2.6 compatible. If you [download the latest](https://github.com/pixelandtonic/RedactorI/archive/1.1.0.zip) version of the plugin and install it, the error will go away and Redactor I will work as usual.
  
  > **Comments:**
  > **username_0**: username_1 username_1... you the man!!!  
  
  ---
  
  