Title: [Plugin: Tag Functions] fatal error when using plugin
Last modified: August 19, 2016

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# [Plugin: Tag Functions] fatal error when using plugin

 *  [vr_chronicle](https://wordpress.org/support/users/vr_chronicle/)
 * (@vr_chronicle)
 * [17 years, 4 months ago](https://wordpress.org/support/topic/plugin-tag-functions-fatal-error-when-using-plugin/)
 * I get the following when installing the plugin:
 * Fatal error: Call to undefined function btl_list_categories() in/home/vanderbilt/
   www/www/chronicle/wp-content/themes/whitewash/sidebar.phpon line 14
 * any idea why this is happening? it is appreciated, thank you.
 * [http://wordpress.org/extend/plugins/tag-functions/](http://wordpress.org/extend/plugins/tag-functions/)

Viewing 2 replies - 1 through 2 (of 2 total)

 *  [heriz](https://wordpress.org/support/users/heriz/)
 * (@heriz)
 * [17 years, 4 months ago](https://wordpress.org/support/topic/plugin-tag-functions-fatal-error-when-using-plugin/#post-905820)
 * I just tried out this plugin.
 * The documentation (included in the readme, but not on the download page) states
   you should put btl_list_**functions**, btw. But this doesn’t work either. It’s
   confusing.
 * It seems the documentation is incorrect, because it only works (at least, for
   me) if you include the code
 * `<?php btl_list_tags(); ?>`
 * Try that.
 *  [wwcwr](https://wordpress.org/support/users/wwcwr/)
 * (@wwcwr)
 * [17 years, 3 months ago](https://wordpress.org/support/topic/plugin-tag-functions-fatal-error-when-using-plugin/#post-905882)
 * I’m new to WordPress, and blogging in general.
 * I really want the functionality of this plugin, but can’t make it work.
 * I got as far as installing the file and activating the plugin, but nothing is
   happening. No errors, but no tag list either.
 * I find the instructions “Place <?php btl_list_functions() ?> in your templates”
   way too vague. There is more than one template. Could someone please explain 
   WHERE and in which files I need to add this code?
 * Thanks in advance.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘[Plugin: Tag Functions] fatal error when using plugin’ is closed to new
replies.

 * 2 replies
 * 3 participants
 * Last reply from: [wwcwr](https://wordpress.org/support/users/wwcwr/)
 * Last activity: [17 years, 3 months ago](https://wordpress.org/support/topic/plugin-tag-functions-fatal-error-when-using-plugin/#post-905882)
 * Status: not resolved

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