Some Compile Error

[Talus]

I have trying to compile the HPL1 Engine but I have 7 error
like this :

include\game\Updateable.h | 41 | error: unused parameter 'afTimeStep'
include\physics\PhysicsWorld.h | 97 | error: unused parameter 'pBody'
include\scene\Entity.h In constructor 'hpl::iEntity::iEntity(hpl::tString)':
include\scene\Entity.h | 82 |error: 'hpl::iEntity::mbIsActive' will be initialized after|
include\scene\Entity.h | 78 | error: 'hpl::iNode* hpl::iEntity::mpParentNode'
include\scene\Entity.h | 50 | error: when initialized here
include\scene\Entity.h | 57 |error: unused parameter 'afTimeStep'
G:\Resistance\libs\HPL\HPL_Engine\sources\ai\AI.cpp | 60 | error: unused parameter 'afTimeStep'
|=== Build finished: 7 errors, 0 warnings ===|

Where can we find some Documentation of the Engine ?

thanx for your answer