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Common Issues

Missing Arial Font (Linux)​

System.IO.FileNotFoundException: Could not find "Arial" font file.

This error comes up if you are trying to use "Arial" font but are missing the font on your system.

Simply install it via the following command in terminal:

sudo apt-get install ttf-mscorefonts-installer

Unable to Load freetype6​

System.DllNotFoundException: Unable to load shared library 'freetype6' or one of its dependencies.

Windows​

If you are running into issues related Unable to load DLL 'freetype6.dll' or something similar, you may need to install VC++ Runtime for 2012.

Linux​

Run the following in terminal:

sudo apt-get install freetype*

Reference: https://stackoverflow.com/questions/21216129/install-gd-library-and-freetype-on-linux

You may need to also copy the lib file to the .dotnet directory so MonoGame can discover it.

  • Locate libfreetype.so.6.20.1 in the following directory /usr/lib/aarch64-linux-gnu

  • Copy libfreetype.so.6.20.1 into ~/.dotnet/shared/Microsoft.NETCore.App/8.0.13 (or whichever version of donet installed)

  • Rename libfreetype.so.6.20.1 to freetype6.so

macOS​

Run the following in terminal:

brew install freetype

Reference: https://formulae.brew.sh/formula/freetype#default

You may need to also copy the lib file to the .dotnet directory so MonoGame can discover it.

  • Locate libfreetype.6.dylib in the following directory /opt/homebrew/Cellar/freetype/2.13.3/lib

  • Copy libfreetype.6.dylib into ~/.dotnet/shared/Microsoft.NETCore.App/8.0.13 (or whichever version of donet installed)

  • Rename libfreetype.6.dylib to libfreetype6.dylib

Unable to Load freeimage​

System.DllNotFoundException: Unable to load shared library 'FreeImage' or one of its dependencies.

Linux​

Run the following in terminal:

sudo apt-get install libfreeimage3 libfreeimage-dev

Reference: https://codeyarns.com/tech/2014-02-11-how-to-install-and-use-freeimage.html#gsc.tab=0

You may need to also copy the lib file to the .dotnet directory so MonoGame can discover it.

  • Locate libfreeimage-3.18.0.so in the following directory /usr/lib/aarch64-linux-gnu

  • Copy libfreeimage-3.18.0.so into ~/.dotnet/shared/Microsoft.NETCore.App/8.0.13 (or whichever version of donet installed)

  • Rename libfreeimage-3.18.0.so to FreeImage.so (casing matters)

macOS​

Run the following in terminal:

brew install freeimage

Reference: https://formulae.brew.sh/formula/freeimage#default

You may need to also copy the lib file to the .dotnet directory so MonoGame can discover it.

  • Locate libfreeimage.3.18.0.dylib in the following directory /opt/homebrew/Cellar/freeimage/3.18.0/lib

  • Copy libfreeimage.3.18.0.dylib into ~/.dotnet/shared/Microsoft.NETCore.App/8.0.13 (or whichever version of donet installed)

  • Rename libfreeimage.3.18.0.dylib to libfreeimage.dylib