WiX ICE validation errors
Try adding <RunWixToolsOutOfProc>true</RunWixToolsOutOfProc> to your WiX project file. We’ve had the same issue for a while, and tried various workarounds including deleting the temporary files and setting the msbuild environment variable. These all appeared to work for a while, but eventually (sometimes after a few days) the problem would come back again. I noticed that … Read more