WAM Editor not displaying design view on Windows 8.1

Date: 8 October 2014
Product/Release: Visual LANSA - V13 and above
Abstract: WAM Editor not displaying design view on Windows 8.1
Submitted By: LANSA Technical Support
Updated: 26 November 2015


This technical article previously described this as a problem that could occur on Windows 8.1 32-bit only. This issue has subsequently been confirmed as occurring on both 32-bit and 64-bit Windows 8.1 operating systems and the article has been updated to remove references to 32-bit only.


Using the WAM editor in Windows 8.1 can generate an error when trying to open the design view and the design will appear blank.

LANSA Editor error

Blank Design


This is caused by Visual LANSA not having authority to write to %temp%. This location is where the WAM Editor is trying to create temporary cache files.


The solution is to set Visual LANSA to always run as administrator. This will mean that Visual LANSA has full premissions to read and write to the %temp% location.

Development Environment Properties 

The Design is now visible


  • This issue can affect both 32-bit and 64-bit versions of Windows 8.1. The same solution can be attempted for both versions of Windows 8.1.
  • If this change does not resolve the issue, WAM Editor logging can be enabled by creating a file called wamed.def in the folder  <LANSA>\LANSA\WAMEditor, (where <LANSA> is the LANSA environment root folder) and adding the following script to it


    Send the resulting log (found in %Temp%\wamed\<006044>\trace\wamed.log) to LANSA Support.