Error compiling

i'm trying compile , upload capacitive sensor led keyboard, when ide tries compile, throws error message:

>-----------------------------------------------------------------<
arduino: 1.6.4 (windows 7), board: "arduino uno"

c:\program files (x86)\arduino\hardware\tools\avr/bin/avr-g++ -c -g -os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -mmd -mmcu=atmega328p -df_cpu=16000000l -darduino=10604 -darduino_avr_uno -darduino_arch_avr -ic:\program files (x86)\arduino\hardware\arduino\avr\cores\arduino -ic:\program files (x86)\arduino\hardware\arduino\avr\variants\standard c:\users\josh\appdata\local\temp\build2046831816545020170.tmp\capacitive_music.cpp -o c:\users\josh\appdata\local\temp\build2046831816545020170.tmp\capacitive_music.cpp.o

capacitive_music.ino:1:30: fatal error: capacitivesensor.h: no such file or directory
compilation terminated.
error compiling.
>-----------------------------------------------------------------<

i downloaded 1.6.4 version , doesn't work. worked before, don't remember version had.

my guess don't have capacitivesensor library file in right place. check , make sure have in right place , subdirectory named capacitivesensor.

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