NEMO and Java >= 9
The current of NEMO is not compatible with Java >=9.
Meanwhile, if you need to keep your default java version to 9 or 10, you can copy and unzip jre1.8.0_171_linux.zip for Linux or jre1.8.0_171_win.zip for Windows on your computer.
Then modify the java used by Nemo in the Nemo.ini and the nemo_batch.ini files (in the installation directory).
At the beginning of the file, add 2 lines
-vm
<java_path>
where <java_path> is the path to the java 8 that you just copied, as in the example below:
-vm
<your_path_to_the_copied_java8> \jre1.8.0_171\bin\java
-vmargs
-Xms512M
-Xmx512M
-XX:PermSize=128M
-XX:MaxPermSize=128M