Ethernet.h missing

I get this error on compiling step … from DS18B20 example file …
the library doesn’t exit I check it …
any suggestion ?
thx

In file included from /home/spasi/sketchbook/libraries/Cayenne/CayenneEthernet.h:24:0,
from DS18B20.ino:30:
/home/spasi/sketchbook/libraries/Cayenne/BlynkSimpleEthernet.h:18:22: fatal error: Ethernet.h: No such file or directory
#include <Ethernet.h>

Hi @marilena.rossetti83,

Welcome to the Cayenne community! Did you download the Cayenne library from the Arduino IDE? If you go to Sketch–> Include Library–> Manage Libraries… and then search for ‘Cayenne’ it should appear and you can download it.

-B

thx 4 reply … I istalled libraries from http://www.arduinolibraries.info/libraries/cayenne
i downloaded the ZIP and installed it manually as usual (I use linux mint with 1.0.1 arduino version)
I have both cayenne and ethernet libraries with examples i can browse them …
If i use example–>ethernet–>WebServer or other i can compile it
If i use example–>Actuators–>RelaySwitch I can’t compile …

It seems a path compile error … it seems it search the file inside the cayenne folder … i haven’t seen it before …