Today I am facing the same question. This is not strictly MongoDB. This is the language / language. Somehow the language on your computer is not defined correctly. I managed to fix my problem by typing:
sudo locale-gen en_US ru_US.UTF-8
sudo locale-gen xx_XX xx_XX.UTF-8
sudo dpkg-reconfigure locales
These commands are designed to create and configure the necessary locales. After these steps, everything should work properly.
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