HELP JulioNIB's Grappling Hook error

[zurufikarsan]

Hello , anyone can fix this error. when i turn on grappling hook, this message always appear .

"Hook Creation Error : Method not found : Single GTA.World.GetGroundZ (GTA.Math.Vector3).

&

Hook Creation Error : Arithmetic operation result in an overflow.

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[Jitnaught]

Looks like his mod is terribly outdated. GTA.World.GetGroundZ was renamed to GTA.World.GetGroundHeight in ScriptHookVDotNet v2 (2015).