Forums Houdini Engine for Unreal Engine V2 - compile fails on Linux

Engine V2 - compile fails on Linux

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pbowmar
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Joined: July 2005
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Hi,

I'm no C++ guru but when I follow Dan's tutorial on compiling, all goes well until I actually try to compile it 

Performing 22 actions (64 in parallel)
[1/22] Compile PCH.HoudiniEngine.h
[3/22] Compile PCH.HoudiniEngineEditor.h
[2/22] Compile PCH.HoudiniEngineRuntime.h
[4/22] Compile Module.HoudiniEngineRuntime.gen.4_of_4.cpp
[5/22] Compile Module.HoudiniEngineRuntime.gen.3_of_4.cpp
[6/22] Compile Module.HoudiniEngineRuntime.gen.2_of_4.cpp
[7/22] Compile Module.HoudiniEngineRuntime.gen.1_of_4.cpp
[8/22] Compile Module.HoudiniEngineRuntime.cpp
[9/22] Compile Module.HoudiniEngine.1_of_5.cpp
[10/22] Compile Module.HoudiniEngine.2_of_5.cpp
[11/22] Compile Module.HoudiniEngine.3_of_5.cpp
[12/22] Compile Module.HoudiniEngine.5_of_5.cpp
[13/22] Compile Module.HoudiniEngine.gen.cpp
[14/22] Compile Module.HoudiniEngine.4_of_5.cpp
In file included from /mnt/sg4tb/unreal/source/UnrealEngine/Engine/Plugins/Runtime/HoudiniEngine/Intermediate/Build/Linux/B4D820EA/UE4Editor/Development/HoudiniEngine/Module.HoudiniEngine.3_of_5.cpp:2:
In file included from /mnt/sg4tb/unreal/source/UnrealEngine/Engine/Plugins/Runtime/HoudiniEngine/Source/HoudiniEngine/Private/HoudiniMaterialTranslator.cpp:28:
/mnt/sg4tb/unreal/source/UnrealEngine/Engine/Plugins/Runtime/HoudiniEngine/Source/HoudiniEngine/Private/HoudiniMaterialTranslator.h:48:6: error: ISO C++ forbids forward references to 'enum' types
enum TextureGroup;
     ^
[15/22] Compile Module.HoudiniEngineEditor.gen.cpp
[16/22] Compile Module.HoudiniEngineEditor.2_of_3.cpp
[17/22] Compile Module.HoudiniEngineEditor.3_of_3.cpp
[18/22] Compile Module.HoudiniEngineEditor.1_of_3.cpp
1 error generated.
[19/22] Link (lld) libUE4Editor-HoudiniEngineRuntime.so
make: *** [Makefile:928: UE4Editor] Error 6


Houdini 18.5.375
gcc 10.2.1
UE 4.25.4

FWIW UE4 compiles and runs fine.

Cheers,
Peter B
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VisualCortexLab
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Joined: July 2005
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same here
Can't get it to compile, no V1 or V2.

error is:
Compile Module.HoudiniEngine.3_of_5.cpp
In file included from /home/jclaude/Documents/UnrealEngine/source/UnrealEngine/Engine/Plugins/Runtime/HoudiniEngine/Intermediate/Build/Linux/B4D820EA/UE4Editor/Development/HoudiniEngine/Module.HoudiniEngine.3_of_5.cpp:2:
In file included from /home/jclaude/Documents/UnrealEngine/source/UnrealEngine/Engine/Plugins/Runtime/HoudiniEngine/Source/HoudiniEngine/Private/HoudiniMaterialTranslator.cpp:28:
/home/jclaude/Documents/UnrealEngine/source/UnrealEngine/Engine/Plugins/Runtime/HoudiniEngine/Source/HoudiniEngine/Private/HoudiniMaterialTranslator.h:48:6: error: ISO C++ forbids forward references to ‘enum’ types
enum TextureGroup;
^
1 error generated.
make: *** Error 6




gcc version 9.3.0
UE 4.25.3
Edited by VisualCortexLab - Oct. 31, 2020 23:10:51
JcN
VisualCortexLab Ltd :: www.visualcortexlab.com
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VisualCortexLab
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509 posts
Joined: July 2005
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Houdini 18.5.381
Ubuntu 20.04


Tried just today.. and V2 seems to have received an update (now you only need to modify the main .cs file to change the Houdini version?)

however I still get this with V2:

Building UE4Editor...
Performing 22 actions (8 in parallel)
[1/22] Compile PCH.HoudiniEngine.h
[2/22] Compile PCH.HoudiniEngineRuntime.h
[3/22] Compile PCH.HoudiniEngineEditor.h
[4/22] Compile Module.HoudiniEngineRuntime.gen.4_of_4.cpp
[5/22] Compile Module.HoudiniEngineRuntime.gen.3_of_4.cpp
[6/22] Compile Module.HoudiniEngineRuntime.gen.2_of_4.cpp
[7/22] Compile Module.HoudiniEngineRuntime.gen.1_of_4.cpp
[8/22] Compile Module.HoudiniEngineRuntime.cpp
[9/22] Compile Module.HoudiniEngine.1_of_5.cpp
[10/22] Compile Module.HoudiniEngine.2_of_5.cpp
[11/22] Compile Module.HoudiniEngine.3_of_5.cpp
In file included from /home/jclaude/Documents/UnrealEngine/source/UnrealEngine/Engine/Plugins/Runtime/HoudiniEngine/Intermediate/Build/Linux/B4D820EA/UE4Editor/Development/HoudiniEngine/Module.HoudiniEngine.3_of_5.cpp:2:
In file included from /home/jclaude/Documents/UnrealEngine/source/UnrealEngine/Engine/Plugins/Runtime/HoudiniEngine/Source/HoudiniEngine/Private/HoudiniMaterialTranslator.cpp:28:
/home/jclaude/Documents/UnrealEngine/source/UnrealEngine/Engine/Plugins/Runtime/HoudiniEngine/Source/HoudiniEngine/Private/HoudiniMaterialTranslator.h:48:6: error: ISO C++ forbids forward references to 'enum' types
enum TextureGroup;
     ^
[12/22] Compile Module.HoudiniEngine.5_of_5.cpp
[13/22] Compile Module.HoudiniEngine.gen.cpp
[14/22] Compile Module.HoudiniEngine.4_of_5.cpp
[15/22] Compile Module.HoudiniEngineEditor.gen.cpp
[16/22] Compile Module.HoudiniEngineEditor.2_of_3.cpp
[17/22] Compile Module.HoudiniEngineEditor.3_of_3.cpp
1 error generated.
[18/22] Compile Module.HoudiniEngineEditor.1_of_3.cpp
[19/22] Link (lld) libUE4Editor-HoudiniEngineRuntime.so
make: *** [Makefile:928: UE4Editor] Error 6
Edited by VisualCortexLab - Nov. 2, 2020 06:31:12
JcN
VisualCortexLab Ltd :: www.visualcortexlab.com
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dpernuit
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534 posts
Joined: Sept. 2016
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Hi,

We've already fixed that issue on our side, the fix hasn't made it to git yet:
In HoudiniMaterialTranslator.h, adding:

#include “Engine/TextureDefines.h”

to the include list and removing

enum TextureGroup;

will fix the build issue.
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