Include file not found even though in same folder.

Development Tools IDE 1.x
1

I'm getting an error trying to compile the sample code for SainSmart's

SainSmart LCD Keypad Shield For Arduino Duemilanove UNO MEGA2560 MEGA1280
SKU:20-011-901

The sample code directory structure is

home
  me
    sketchbook
      keypad_lcd
        keypad_1602for_1.0
          DFR_Key.h
          DFR_Key.cpp
          examples
            Key_Grab
              Key_Grab.ino
              <filename made of strange characters>.c

Part of the .zip file expansion:

   creating: keypad_lcd/keypad_1602for_1.0/
  inflating: keypad_lcd/keypad_1602for_1.0/DFR_Key.cpp  
  inflating: keypad_lcd/keypad_1602for_1.0/DFR_Key.h  
  inflating: keypad_lcd/keypad_1602for_1.0/README.txt  
   creating: keypad_lcd/keypad_1602for_1.0/examples/
   creating: keypad_lcd/keypad_1602for_1.0/examples/Key_Grab/
  inflating: keypad_lcd/keypad_1602for_1.0/examples/Key_Grab/Key_Grab.ino  
  inflating: keypad_lcd/keypad_1602for_1.0/examples/Key_Grab/ð┬¢¿╬─▒¥╬─ÁÁ.c  
  inflating: keypad_lcd/keypad_1602for_1.0/keywords.txt

The error:

/opt/arduino-1.6.4/hardware/tools/avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega8 -DF_CPU=16000000L -DARDUINO=10604 -DARDUINO_AVR_NG -DARDUINO_ARCH_AVR -I/opt/arduino-1.6.4/hardware/arduino/avr/cores/arduino -I/opt/arduino-1.6.4/hardware/arduino/avr/variants/standard -I/opt/arduino-1.6.4/libraries/LiquidCrystal/src /tmp/build551086873859939019.tmp/Key_Grab.cpp -o /tmp/build551086873859939019.tmp/Key_Grab.cpp.o 
Key_Grab.ino:22:21: fatal error: DFR_Key.h: No such file or directory
compilation terminated.
Error compiling.

Why am I getting the error? I have tried putting a copy of DFR_Key.h in Key_Grab with Key_Grab.ino and still get the error. The only way I could get Key_Grab.ino to compile is to copy DFR_Key.h into Key_Grab.ino and delete the #include line.

I tried another example and got the same result. The .h file could not be found.
I'm using Arduino IDE 1.6.4 but I got the same result with 1.6.3.
My system is Gentoo Linux.

Thanks

2

Have a go at including the file tby selecting sketch --> add file in the IDE and let me know if you are still having problems.

3

I get the same result. DFR_Key.h show as a second tab but I still get the same error.