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The further installation is explained in detail at httphttps://wwwlejos.lejossourceforge.orgio/nxt/nxj/tutorial/Preliminaries/GettingStarted.htm.

Do not forget to flash the download leJOS firmware to the Mindstorms brick as explained in the tutorial!

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The setup.exe of the current LEGO Fantom driver for Windows (1.2.0) has an awkward issue. If you get an error message (Developer Error) because an .msi file could not be found, don't panic. The file is part of the downladed downoladed archive (in the Products folder) but you have to start it manually. You may also try to install the necessary drivers by following the Guide to install on Windows 10 on Reddit.

If you get a runtime error when starting the setup.exe also don't panic. The file is part of the downladed downloaded archive (in the Products folder) but you have to start it manually.

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A simple Hello World application for the Mindstorms is developed as part of the leJOS tutorial.

If get a compilation error, set the java compliance level (target and source are necessary if you are using java 11 or something like that and have not set LEJOS_NXT_JAVA_HOME to a java 8 installation).

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