The following type of errors have been found in your log;
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.09-10.49.02:166][ 0]LogInit:Display: LogPackageName:Error: DoesPackageExist: DoesPackageExist FAILED: '/Game/Geometry_Animated/train_01_Crane T Frame_01_PhysicsAsset' is not a standard unreal filename or a long path name. Reason: Name may not contain the following characters:
I’m not entirely sure how, but the asset file name appears to contain invalid characters (might be spaces, I can’t tell for certain). I would rename the affected packages in the editor to not have any invalid characters.
The following assets are affected;
'/Game/Geometry_Animated/train_01_Crane T Frame_01_PhysicsAsset'
'/Game/Geometry_Animated/train_01_Crane T Frame_01_Skeleton'
'/Game/Geometry_Animated/train_01_Crane T Frame_02_PhysicsAsset'
'/Game/Geometry_Animated/train_01_Crane T Frame_02_Skeleton'
'/Game/Geometry_Animated/train_01_Crane T Frame_04_PhysicsAsset'
'/Game/Geometry_Animated/train_01_Crane T Frame_04_Skeleton'
'/Game/Geometry_Animated/train_01_inlet cell area_PhysicsAsset'
'/Game/Geometry_Animated/train_01_inlet cell area_Skeleton'
As project.gheist stated, you need to fix the spaces within your animated geometry folder. Take the spaces out, add underscores instead, if you need something that resembles a space.
/Game/Geometry_Animated/train_01_Crane T Frame_01_PhysicsAsset
/Game/Geometry_Animated/train_01_Crane T Frame_01_Skeleton
/Game/Geometry_Animated/train_01_Crane T Frame_02_PhysicsAsset
/Game/Geometry_Animated/train_01_Crane T Frame_02_Skeleton
/Game/Geometry_Animated/train_01_Crane T Frame_04_PhysicsAsset
/Game/Geometry_Animated/train_01_Crane T Frame_04_Skeleton
/Game/Geometry_Animated/train_01_inlet cell area_PhysicsAsset
/Game/Geometry_Animated/train_01_inlet cell area_Skeleton