Hi!! I don't know what happened? my license expired, but the Chaos Group extended it to me until the end of this month. It turns out that reinstalling vray3.40 beta and now aparace this.
Before I thought it was a bug in the program so I reinstalled vray 3.40 beta and now tells me all this and nothing works.

7-Zip (a) [64] 15.14 : Copyright (c) 1999-2015 Igor Pavlov : 2015-12-31

Scanning the drive for archives:
1 file, 51336790 bytes (49 MiB)

Extracting archive: C:\Program Files\Chaos Group\V-Ray\V-Ray 3.4 for SketchUp\extension\vrayappsdk\appsdk-win-1.8.3-vray3.40.4-20161026-beta.7z

Path = C:\Program Files\Chaos Group\V-Ray\V-Ray 3.4 for SketchUp\extension\vrayappsdk\appsdk-win-1.8.3-vray3.40.4-20161026-beta.7z
Type = 7z
Physical Size = 51336790
Headers Size = 2177
Method = LZMA:24
Solid = +
Blocks = 1

Everything is Ok

Folders: 1
Files: 108
Size: 263464794
Compressed: 51336790
Automatic installation was successful!
Error loading logtext.dll.
*** ServiceExe (startup) 1.0.5 - built 2010-10-01 13:09:35 ***
OpenService failed - 'El servicio especificado no existe como servicio instalado. (0x424)'
Error loading logtext.dll.
*** ServiceExe (startup) 1.0.5 - built 2010-10-01 13:09:35 ***

Path of executable: C:\Program Files\Chaos Group\V-Ray Swarm
Service start type is 'Automatic'.
Installing service 'vrswrm-service' as 'V-Ray Swarm'...
Service 'V-Ray Swarm' installed.
Starting service 'V-Ray Swarm'...
Start pending for 'V-Ray Swarm'...
Waiting...
Waiting...
Result of starting service 'V-Ray Swarm': Success.
Automatic installation was successful!