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Code Fix: An error occurs when uploading a file using K2 smartforms


Issue Description

When you generate a list view based on a SmartObject with a file property, running the view and uploading a file results in an error.

Error Message

The following error message occurs: “The file could not be uploaded. Unforeseen error occurred on the file upload, contact your administrator”.


  1. Ensure you have K2 Five (5.3) installed.
  2. Download the K2 Five (5.3) FP6 from K2 Partner and Customer Portal.
  3. Install the K2 Five (5.3) FP6 to apply the fix.
  4. It is recommended to refresh the browser cache.