 At 1.ii and 2.ii, the instructions call for double clicking the jar file. On windows, when I double clicked the jar file, it causes an exception:  <!--session: 1743753647565-ea9ce7bc-dd0f-4ff4-bd60-f45e3a033b8c--> <!--Version: Desktop v3.6.0-->
At 1.ii and 2.ii, the instructions call for double clicking the jar file. On windows, when I double clicked the jar file, it causes an exception: