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Upload a File error

The following error occurred:

Invalid data writer 'XenForo_DataWriter_AttachmentData' specified
  1. XenForo_DataWriter::create() in XenForo/Model/Attachment.php at line 282
  2. XenForo_Model_Attachment->insertUploadedAttachmentData() in XenForo/ControllerPublic/Attachment.php at line 192
  3. XenForo_ControllerPublic_Attachment->actionDoUpload() in XenForo/FrontController.php at line 310
  4. XenForo_FrontController->dispatch() in XenForo/FrontController.php at line 132
  5. XenForo_FrontController->run() in /home/gamerbbn/public_html/forum/index.php at line 13
Any clue why this would be happening? Could it be because I just added friendly URLs? That's all I can think of.

Did a File Health Check and go this.

Potential Problems

  1. library/XenForo/DataWriter/BbCodeMediaSite.php File does not contain expected contents.

  2. library/XenForo/DataWriter/AttachmentData.php File does not contain expected contents.

Jake Bunce

XenForo moderator
Staff member
The file check indicates problems with those two files, one of which is indicated in the error message. You should re-upload those two files from the zip file. Then run the file check to ensure all files pass. That will probably fix the error.