[1.1.56] Automatic update to 1.1.57 fails - "LuaForce.html has unexpected content"

[Mike Rosoft]

I have version 1.1.56 installed (after update from version about 0.17), and enabled experimental releases. Start the game. Game offers to update to 1.1.57. Confirm; the update package is downloaded, but the update fails with the following error: "Checking update packages failed: File C:/Program Files/Factorio/data/../doc-html/LuaForce.html has unexpected content".

The following is in the log:

55.573 Factorio initialised
55.580 Info HttpSharedState.cpp:54: Downloading https://updater.factorio.com/updater/ge ... iVersion=2
56.179 1 packages available to download (experimental updates enabled).
59.506 Info HttpSharedState.cpp:54: Downloading https://updater.factorio.com/updater/ge ... iVersion=2
65.152 Error DownloadingUpdatesGui.cpp:108: Checking update packages failed: File C:/Program Files/Factorio/data/../doc-html/LuaForce.html has unexpected content
208.955 Repaired wrong fluid system disconnect.
288.154 Quitting: user-quit.

[Loewchen]

Your installation is corrupted, you need to reinstall the game.

[Mike Rosoft]

I have done so. (Do you want me to send you the file in question?)

[Loewchen]

No need, this corruption is usually caused by antivirus software interfering.