Build failed for UE4.26

[gaoyuanzizizi]

• Operating System:
• UE4 Version:4.26
• UnrealCV Version:3.0.10
• Client (python2, 3 or matlab): python3
• Problem Description:
  I have tried to build UnrealCV for UE4.26 but it has failed. Can you please inform whether there is any support for this or not?

$ python build.py --UE "E:\Program Files\Epic Games\UE_4.26"
Running AutomationTool...
Parsing command line: BuildPlugin -plugin=E:\PythonDocuments\unrealcv-0.3.10\UnrealCV.uplugin -package=E:\PythonDocuments\unrealcv-0.3.10\Plugins\UnrealCV -rocket -targetplatforms=Win64
Copying 138 file(s) using max 64 thread(s)
Reading plugin from E:\PythonDocuments\unrealcv-0.3.10\Plugins\UnrealCV\HostProject\Plugins\UnrealCV\UnrealCV.uplugin...
Building plugin for host platforms: Win64
Running: E:\Program Files\Epic Games\UE_4.26\Engine\Binaries\DotNET\UnrealBuildTool.exe UE4Editor Win64 Development -Project=E:\PythonDocuments\unrealcv-0.3.10\Plugins\UnrealCV\HostProject\HostProject.uproject -plugin=E:\PythonDocuments\unrealcv-0.3.10\Plugins\UnrealCV\HostProject\Plugins\UnrealCV\UnrealCV.uplugin -iwyu -noubtmakefiles -manifest=E:\PythonDocuments\unrealcv-0.3.10\Plugins\UnrealCV\HostProject\Saved\Manifest-UE4Editor-Win64-Development.xml -nohotreload -log="C:\Users\Administrator\AppData\Roaming\Unreal Engine\AutomationTool\Logs\E+Program+Files+Epic+Games+UE_4.26\UBT-UE4Editor-Win64-Development.txt"
While compiling E:\PythonDocuments\unrealcv-0.3.10\Plugins\UnrealCV\HostProject\Intermediate\Build\BuildRules\HostProjectModuleRules.dll:
e:\PythonDocuments\unrealcv-0.3.10\Plugins\UnrealCV\HostProject\Plugins\UnrealCV\Source\UnrealCV\UnrealCV.Build.cs(18,41) : error CS0122: “UnrealBuildTool.BuildConfiguration”不可访问，因为它受保护级别限制
e:\PythonDocuments\unrealcv-0.3.10\Plugins\UnrealCV\HostProject\Plugins\UnrealCV\Source\UnrealCV\UnrealCV.Build.cs(51,8) : error CS0103: 当前上下文中不存在名称“UEBuildConfiguration”
ERROR: Unable to compile source files.
Took 2.661s to run UnrealBuildTool.exe, ExitCode=6
UnrealBuildTool failed. See log for more details. (C:\Users\Administrator\AppData\Roaming\Unreal Engine\AutomationTool\Logs\E+Program+Files+Epic+Games+UE_4.26\UBT-UE4Editor-Win64-Development.txt)
AutomationTool exiting with ExitCode=6 (6)
BUILD FAILED

[florian-world]

I just pushed a new 4.26 branch on my fork https://github.com/florian-world/unrealcv/tree/4.26 which I used successfully to compile a new world with Unreal Engine 4.26.2 on Ubuntu 20.04.

If this is of any use, perhaps @qiuwch can pull it to a new 4.26 branch here.