The method getItemDropped(BlockState, Random, int) is undefined for the type Block /bassebombecraft-1.8/src/main/java/bassebombecraft/block/RandomBookBlock.java

Solution per :https://www.minecraftforge.net/forum/topic/71815-solved1142-custom-blocks-not-dropping-items/

Blocks use loot tables now. You can set it by overriding getLootTable in your block class or it will default to [modid]:blocks/[block registry name]. This translates to the following location of the loot table: /assets/[modid]/loot_tables/blocks/[block registry name].json.

Added loot table JSON in data/bassebombecraft/loot_tables/blocksrandombookblock.json

Closed with commit 8ddac21.