Can't compile a project (Error)

Hi guys,

When attempting to compile the project, I’m getting the compiling errors. What am I doing wrong? Does anyone know what the problem is?

Thanks in advance.

[FONT=courier new]UATHelper: Packaging (Android (ASTC)): C:/Users/MDV/Desktop/Prj VR/plugin NEW/Plugins/WaveVR/Source\WaveVR/Public/AdaptiveController.h(5,10) : fatal error: ‘assimp/Importer.hpp’ file not found
UATHelper: Packaging (Android (ASTC)): #include <assimp/Importer.hpp>
UATHelper: Packaging (Android (ASTC)): ^
UATHelper: Packaging (Android (ASTC)): 1 error generated.
PackagingResults: Error: ‘assimp/Importer.hpp’ file not found
LogSlate: FSceneViewport::OnFocusLost() reason 0
UATHelper: Packaging (Android (ASTC)): [2/3] Module.WaveVR.cpp [armv7-es2]
UATHelper: Packaging (Android (ASTC)): In file included from C:/Users/MDV/Desktop/Prj VR/plugin NEW/Plugins/WaveVR/Intermediate/Build/Android/UE4/Development/WaveVR/Module.WaveVR.cpp:2:
UATHelper: Packaging (Android (ASTC)): In file included from C:\Users\MDV\Desktop\Prj VR\plugin NEW\Plugins\WaveVR\Source\WaveVR\Private\AdaptiveController.cpp:4:
UATHelper: Packaging (Android (ASTC)): C:/Users/MDV/Desktop/Prj VR/plugin NEW/Plugins/WaveVR/Source/WaveVR/Public\AdaptiveController.h(5,10) : fatal error: ‘assimp/Importer.hpp’ file not found
UATHelper: Packaging (Android (ASTC)): #include <assimp/Importer.hpp>
UATHelper: Packaging (Android (ASTC)): ^
UATHelper: Packaging (Android (ASTC)): 1 error generated.
UATHelper: Packaging (Android (ASTC)): Total build time: 17,62 seconds (Parallel executor: 10,95 seconds)
PackagingResults: Error: ‘assimp/Importer.hpp’ file not found
UATHelper: Packaging (Android (ASTC)): Took 17,9162254s to run UnrealBuildTool.exe, ExitCode=5
UATHelper: Packaging (Android (ASTC)): ERROR: UnrealBuildTool failed. See log for more details. (C:\Users\MDV\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_4.20\UBT-plugin-Android-Development_2.txt)
UATHelper: Packaging (Android (ASTC)): (see C:\Users\MDV\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_4.20\Log.txt for full exception trace)
PackagingResults: Error: UnrealBuildTool failed. See log for more details. (C:\Users\MDV\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_4.20\UBT-plugin-Android-Development_2.txt)
UATHelper: Packaging (Android (ASTC)): AutomationTool exiting with ExitCode=5 (5)
UATHelper: Packaging (Android (ASTC)): BUILD FAILED
PackagingResults: Error: Unknown Error