Error With Chunk manager 2.0

I have been trying to make a block which loads the chunk whenever it is placed and whenever i test anything with this block it just causes an error while trying to build, any help would be appreciated.

 error: cannot find symbol
             ForgeChunkManager.forceChunk(_world, "ismeargavno", new BlockPos((int) world.getChunk(new BlockPos((int) x, (int) y, (int) z)).getPos().x, 0, (int) world.getChunk(new BlockPos((int) x, (int) y, (int) z)).getPos().z),
             ^
   symbol:   variable ForgeChunkManager
   location: class EnhancedStorageUnitOnTickUpdateProcedure
 1 error

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BUILD FAILED in 1s
7 actionable tasks: 1 executed, 6 up-to-date
Configuration cache entry reused.