<p>Solution</p>

<p>Login to the server and access mysql and find your database.</p>

<ol>
<li><p>Select the fields table to locate the ID of the problem field.</p>

<p>SELECT * FROM fields;</p></li>
<li><p>Remove the field using the ID.</p>

<p>DELETE from fields where id = '355';</p></li>
</ol>

CC BY-SA 4.0
2019-11-06T15:58:50.940Z
2019-11-06T15:58:50.940Z
Dan Lee
<p>I was adding new fields to my Craft 3 install using the field manager plugin. Suddenly I am seeing a Internal Server Error when trying to access the admin area.</p>

<p>The front end looks fine. Anyone know how I can quickly resolve?</p>

<p><strong>In web.log I get</strong></p>

<pre><code>Setting unknown property: craft\behaviors\ContentBehavior::announcementLink in /home/forge/www.uk-cpi.com/vendor/yiisoft/yii2/base/BaseObject.php:163
</code></pre>

<p><strong>In phperrors.log I get</strong></p>

<pre><code>An Error occurred while handling another error:
yii\base\UnknownPropertyException: Setting unknown property: craft\behaviors\ContentBehavior::announcementLink in /home/forge/www.uk-cpi.com/vendor/yiisoft/yii2/base/BaseObject.php:163
</code></pre>

<p><code>announcementLink</code> is the name of the field I was adding</p>

<craft3><field><error-message>
Internal Server Error when adding new Fields
# Internal Server Error when adding new Fields

(Asked by: username_0 on 2019-11-06)

I was adding new fields to my Craft 3 install using the field manager plugin. Suddenly I am seeing a Internal Server Error when trying to access the admin area.
The front end looks fine. Anyone know how I can quickly resolve?
In web.log I get
Setting unknown property: craft\behaviors\ContentBehavior::announcementLink in /home/forge/www.uk-cpi.com/vendor/yiisoft/yii2/base/BaseObject.php:163

In phperrors.log I get
An Error occurred while handling another error:
yii\base\UnknownPropertyException: Setting unknown property: craft\behaviors\ContentBehavior::announcementLink in /home/forge/www.uk-cpi.com/vendor/yiisoft/yii2/base/BaseObject.php:163

announcementLink is the name of the field I was adding

**Tags:** craft3, field, error-message


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## 1 answers

### Answer by username_0 on 2019-11-06. Score: 1

Solution

Login to the server and access mysql and find your database.

1. Select the fields table to locate the ID of the problem field.

   SELECT \* FROM fields;
2. Remove the field using the ID.

   DELETE from fields where id = '355';


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