Changes

* If that shows an error or it still doesn't work, you can [https://brew.sh install Homebrew] and run <code>brew install mono mono-libgdiplus</code> in the Terminal app.

* If that shows an error or it still doesn't work, you can [https://brew.sh install Homebrew] and run <code>brew install mono mono-libgdiplus</code> in the Terminal app.

==="BadImageFormatException: Could not load file or assembly 'Microsoft.Xna.*.dll'" (Windows only)===

===<span id="xna-corrupted"></span>"Could not load file or assembly 'Microsoft.Xna.*.dll'" or "System.IO.Compression.dll" (Windows only)===

That means something is wrong with your copy of XNA Framework. Unfortunately that can be hard to fix since it's integrated into Windows now. The most reliable solutions are...

That means something is wrong with your copy of XNA Framework. Unfortunately that can be hard to fix since it's integrated into Windows now. The most reliable solutions are...

# Reinstall XNA Framework (see [[#Nothing happens when you launch the game|''Nothing happens when you launch the game'']] for instructions).

# Reinstall XNA Framework 4.5.2 (see [[#Nothing happens when you launch the game|''Nothing happens when you launch the game'']] for instructions).

# [https://support.microsoft.com/en-us/help/4026528/windows-reset-or-reinstall-windows-10 Perform a Windows reset] (you can keep your files).

# [https://support.microsoft.com/en-us/help/4026528/windows-reset-or-reinstall-windows-10 Perform a Windows reset] (you can keep your files).

# Perform a clean reinstall of Windows. This is drastic, but usually fixes the issue.

# Perform a clean reinstall of Windows. This is drastic, but usually fixes the issue.