[4.6.1-4.7 P7] Convert project to 4.7 P7 problem

I got this msg at convert the game uproject from 4.6.1 to 4.7 P7

Running D:/Program Files/Epic Games/4.7/Engine/Binaries/DotNET/UnrealBuildTool.exe -projectfiles -project="D:/Users/UserName/Documents/Unreal Projects/GameName/GameName.uproject" -game -rocket -progress
Discovering modules, targets and source code for game...
Errors detected while compiling D:\Users\UserName\Documents\Unreal Projects\GameName\Intermediate\Build\BuildRules\ProjectFileGeneratorModuleRules.dll:
d:\Program Files\Epic Games\4.7\Engine\Source\Runtime\CEF3Utils\CEF3Utils.Build.cs(5,14) : error CS0101: El espacio de nombres '<espacio de nombres global>' ya contiene una definici?n para 'CEF3Utils'
d:\Program Files\Epic Games\4.7\Engine\Source\Runtime\WebBrowser\WebBrowser.Build.cs(5,14) : error CS0101: El espacio de nombres '<espacio de nombres global>' ya contiene una definici?n para 'WebBrowser'
UnrealBuildTool Exception: ERROR: UnrealBuildTool encountered an error while compiling source files

*Sorry for the spanish text, say something like: error CS0101: The name space ‘< global name space>’ already have a definition for ‘CEF3Utils’

Hey Hevedy,

Are you building the engine from source (via GitHub), or are you using the launcher? This thread indicates the problem may be related to using the previews on the source build.

From the launcher version.

Could you try updating to Preview 8 to see if the problem still exists?

Yeah in the P8 the same problem.

It looks like we originally had the CEF3Utils and WebBrowser directories in the Developer folder, and now they’re in Runtime. If you have both, that could cause errors. Could you delete the ones in Developer and see if that fixes it?

By default, Developer is at: C:\Program Files\Unreal Engine\4.7\Engine\Source\Developer

After delete that folders, now create the project and compile good.
But now in the VS i only get this options to build: https://dl.dropboxusercontent.com/u/28070491/UE/Forums/Options.png
Right (4.7 P8), Left (4.6.1), where are the Client & Server options ?
At execute the game/project in the editor i get a windows msg with:
Default Property warnings and errors:
Error: CDO Constructor ()

The shorter option list is what you see when using the Launcher (binary) build. The longer list is associated with a version of the engine built from source.

For the “Error: CDO Constructor” message, we are already tracking that bug and are working on a fix.