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I got compilation errors with the USB Serial component. I test with Arduino UNO and Arduino leonardo and also with flowcode 7 and 8.

Compilation error with flowcode 8:

C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3>del "C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\arduino leonardo USB serial.o"
Could Not Find C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\arduino leonardo USB serial.o
C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3>del "C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\usb_specific_request.o"
C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3>del "C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\usb_descriptors.o"
C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3>del "C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\power_drv.o"
C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3>del "C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\usb_drv.o"
C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3>del "C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\usb_task.o"
C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3>del "C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\usb_standard_request.o"
C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3>del "C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\usb_device_task.o"
C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3>"C:\PROGRA~2\Flowcode\Common\COMPIL~1\avr\BATCHF~1\..\bin\avr-gcc.exe" -mmcu=atmega32u4 -w -Os -funsigned-char -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\HID" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\HID\conf" -I"C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\." -o "C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\arduino leonardo USB serial.o" -c "C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\arduino leonardo USB serial.c" -lm
C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\arduino leonardo USB serial.c:392:26: error: uart_usb_lib.h: No such file or directory
C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\arduino leonardo USB serial.c:402: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'line_coding'
C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\arduino leonardo USB serial.c:404: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'line_status'
C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\arduino leonardo USB serial.c:406: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'serial_state'
C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\arduino leonardo USB serial.c: In function 'FCD_056e1_USB_Serial1__SendByte':
C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\arduino leonardo USB serial.c:949: error: 'TX_EP' undeclared (first use in this function)
C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\arduino leonardo USB serial.c:949: error: (Each undeclared identifier is reported only once
C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\arduino leonardo USB serial.c:949: error: for each function it appears in.)
C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3>"C:\PROGRA~2\Flowcode\Common\COMPIL~1\avr\BATCHF~1\..\bin\avr-gcc.exe" -mmcu=atmega32u4 -w -Os -fsigned-char -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\HID" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\HID\conf" -I"C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\." -o "C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\usb_specific_request.o" -c "C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\HID\usb_specific_request.c"
C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3>"C:\PROGRA~2\Flowcode\Common\COMPIL~1\avr\BATCHF~1\..\bin\avr-gcc.exe" -mmcu=atmega32u4 -w -Os -fsigned-char -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\HID" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\HID\conf" -I"C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\." -o "C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\usb_descriptors.o" -c "C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\HID\usb_descriptors.c"
C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3>"C:\PROGRA~2\Flowcode\Common\COMPIL~1\avr\BATCHF~1\..\bin\avr-gcc.exe" -mmcu=atmega32u4 -w -Os -fsigned-char -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\HID" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\HID\conf" -I"C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\." -o "C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\power_drv.o" -c "C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\lib_mcu\power\power_drv.c"
C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3>"C:\PROGRA~2\Flowcode\Common\COMPIL~1\avr\BATCHF~1\..\bin\avr-gcc.exe" -mmcu=atmega32u4 -w -Os -fsigned-char -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\HID" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\HID\conf" -I"C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\." -o "C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\usb_drv.o" -c "C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\lib_mcu\usb\usb_drv.c"
C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3>"C:\PROGRA~2\Flowcode\Common\COMPIL~1\avr\BATCHF~1\..\bin\avr-gcc.exe" -mmcu=atmega32u4 -w -Os -fsigned-char -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\HID" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\HID\conf" -I"C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\." -o "C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\usb_task.o" -c "C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\modules\usb\usb_task.c"
C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3>"C:\PROGRA~2\Flowcode\Common\COMPIL~1\avr\BATCHF~1\..\bin\avr-gcc.exe" -mmcu=atmega32u4 -w -Os -fsigned-char -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\HID" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\HID\conf" -I"C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\." -o "C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\usb_standard_request.o" -c "C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\modules\usb\device_chap9\usb_standard_request.c"
C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3>"C:\PROGRA~2\Flowcode\Common\COMPIL~1\avr\BATCHF~1\..\bin\avr-gcc.exe" -mmcu=atmega32u4 -w -Os -fsigned-char -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\HID" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\HID\conf" -I"C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\." -o "C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\usb_device_task.o" -c "C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\modules\usb\device_chap9\usb_device_task.c"
C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3>"C:\PROGRA~2\Flowcode\Common\COMPIL~1\avr\BATCHF~1\..\bin\avr-gcc.exe" -mmcu=atmega32u4 -w -Os -fsigned-char -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\HID" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\HID\conf" -I"C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\." -o "C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\hid_task.o" -c "C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\HID\hid_task.c"
C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3>"C:\PROGRA~2\Flowcode\Common\COMPIL~1\avr\BATCHF~1\..\bin\avr-gcc.exe" -mmcu=atmega32u4 "C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\arduino leonardo USB serial.o" "C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\usb_specific_request.o" "C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\usb_descriptors.o" "C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\power_drv.o" "C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\usb_drv.o" "C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\usb_task.o" "C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\usb_standard_request.o" "C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\usb_device_task.o" "C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\hid_task.o" -o "C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\arduino leonardo USB serial.elf"
avr-gcc.exe: C:\Users\krisw\ONEDRI~1\OD\FLOWCO~3\arduino leonardo USB serial.o: No such file or directory
Error returned from [avr-gcc.exe]
C:\Program Files (x86)\Flowcode\Common\Compilers\avr\batchfiles\avra_usb.bat reported error code 1
FINISHED

Hello,

The Arduino Uno just needs the UART component as the device does not host the USB connection itself and instead uses an external USB to serial IC.

As for the Leonardo, Many thanks for letting me know. Investigating for you now.

It looks like you just need to set the compiler options to allow the USB serial component to compile.

Change the Compiler path to.

$(compileravr)batchfiles\avra_usb.bat

and the parameters to.

$(chip:l) "$(outdir)" "$(target)" Serial

Then save as a new option, e.g. ARVUSB Serial and ensure the default checkbox is ticked.

The problem with the error is solved.
But I can't see something on the USB Serial 1 console with the arduino leonardo.

Hello,

Working fine for me.

Here is a Flowcode project to receive the data from the USB Serial Component.

Just set the correct port for the COM Port component, then click run and it should receive the data.

A few weeks ago I change the settings to viewtopic.php?f=76&t=21420

Now i got this error with the example:

C:\Program Files (x86)\Flowcode\Common\Compilers\avr\batchfiles\avra_usb.bat atmega32u4 "C:\Users\krisw\DOWNLO~1\" "Flowcode1 (1)" Serial
.
Deleting existing .o files

C:\Users\krisw\DOWNLO~1>del "C:\Users\krisw\DOWNLO~1\Flowcode1 (1).o"

C:\Users\krisw\DOWNLO~1>del "C:\Users\krisw\DOWNLO~1\usb_specific_request.o"

C:\Users\krisw\DOWNLO~1>del "C:\Users\krisw\DOWNLO~1\usb_descriptors.o"

C:\Users\krisw\DOWNLO~1>del "C:\Users\krisw\DOWNLO~1\power_drv.o"

C:\Users\krisw\DOWNLO~1>del "C:\Users\krisw\DOWNLO~1\usb_drv.o"

C:\Users\krisw\DOWNLO~1>del "C:\Users\krisw\DOWNLO~1\usb_task.o"

C:\Users\krisw\DOWNLO~1>del "C:\Users\krisw\DOWNLO~1\usb_standard_request.o"

C:\Users\krisw\DOWNLO~1>del "C:\Users\krisw\DOWNLO~1\usb_device_task.o"

C:\Users\krisw\DOWNLO~1>"C:\PROGRA~2\Flowcode\Common\COMPIL~1\avr\BATCHF~1\..\bin\avr-gcc.exe" -mmcu=atmega32u4 -w -Os -funsigned-char -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\CDC" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\CDC\conf" -I"C:\Users\krisw\DOWNLO~1\." -o "C:\Users\krisw\DOWNLO~1\Flowcode1 (1).o" -c "C:\Users\krisw\DOWNLO~1\Flowcode1 (1).c" -lm

C:\Users\krisw\DOWNLO~1>"C:\PROGRA~2\Flowcode\Common\COMPIL~1\avr\BATCHF~1\..\bin\avr-gcc.exe" -mmcu=atmega32u4 -w -Os -fsigned-char -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\CDC" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\CDC\conf" -I"C:\Users\krisw\DOWNLO~1\." -o "C:\Users\krisw\DOWNLO~1\usb_specific_request.o" -c "C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\CDC\usb_specific_request.c"

C:\Users\krisw\DOWNLO~1>"C:\PROGRA~2\Flowcode\Common\COMPIL~1\avr\BATCHF~1\..\bin\avr-gcc.exe" -mmcu=atmega32u4 -w -Os -fsigned-char -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\CDC" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\CDC\conf" -I"C:\Users\krisw\DOWNLO~1\." -o "C:\Users\krisw\DOWNLO~1\usb_descriptors.o" -c "C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\CDC\usb_descriptors.c"

C:\Users\krisw\DOWNLO~1>"C:\PROGRA~2\Flowcode\Common\COMPIL~1\avr\BATCHF~1\..\bin\avr-gcc.exe" -mmcu=atmega32u4 -w -Os -fsigned-char -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\CDC" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\CDC\conf" -I"C:\Users\krisw\DOWNLO~1\." -o "C:\Users\krisw\DOWNLO~1\power_drv.o" -c "C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\lib_mcu\power\power_drv.c"

C:\Users\krisw\DOWNLO~1>"C:\PROGRA~2\Flowcode\Common\COMPIL~1\avr\BATCHF~1\..\bin\avr-gcc.exe" -mmcu=atmega32u4 -w -Os -fsigned-char -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\CDC" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\CDC\conf" -I"C:\Users\krisw\DOWNLO~1\." -o "C:\Users\krisw\DOWNLO~1\usb_drv.o" -c "C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\lib_mcu\usb\usb_drv.c"

C:\Users\krisw\DOWNLO~1>"C:\PROGRA~2\Flowcode\Common\COMPIL~1\avr\BATCHF~1\..\bin\avr-gcc.exe" -mmcu=atmega32u4 -w -Os -fsigned-char -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\CDC" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\CDC\conf" -I"C:\Users\krisw\DOWNLO~1\." -o "C:\Users\krisw\DOWNLO~1\usb_task.o" -c "C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\modules\usb\usb_task.c"

C:\Users\krisw\DOWNLO~1>"C:\PROGRA~2\Flowcode\Common\COMPIL~1\avr\BATCHF~1\..\bin\avr-gcc.exe" -mmcu=atmega32u4 -w -Os -fsigned-char -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\CDC" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\CDC\conf" -I"C:\Users\krisw\DOWNLO~1\." -o "C:\Users\krisw\DOWNLO~1\usb_standard_request.o" -c "C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\modules\usb\device_chap9\usb_standard_request.c"

C:\Users\krisw\DOWNLO~1>"C:\PROGRA~2\Flowcode\Common\COMPIL~1\avr\BATCHF~1\..\bin\avr-gcc.exe" -mmcu=atmega32u4 -w -Os -fsigned-char -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\CDC" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\CDC\conf" -I"C:\Users\krisw\DOWNLO~1\." -o "C:\Users\krisw\DOWNLO~1\usb_device_task.o" -c "C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\modules\usb\device_chap9\usb_device_task.c"

C:\Users\krisw\DOWNLO~1>"C:\PROGRA~2\Flowcode\Common\COMPIL~1\avr\BATCHF~1\..\bin\avr-gcc.exe" -mmcu=atmega32u4 -w -Os -fsigned-char -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\CDC" -I"C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\CDC\conf" -I"C:\Users\krisw\DOWNLO~1\." -o "C:\Users\krisw\DOWNLO~1\uart_usb_lib.o" -c "C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\AVR\USB\Series4\demo\CDC\uart_usb_lib.c"

C:\Users\krisw\DOWNLO~1>"C:\PROGRA~2\Flowcode\Common\COMPIL~1\avr\BATCHF~1\..\bin\avr-gcc.exe" -mmcu=atmega32u4 "C:\Users\krisw\DOWNLO~1\Flowcode1 (1).o" "C:\Users\krisw\DOWNLO~1\usb_specific_request.o" "C:\Users\krisw\DOWNLO~1\usb_descriptors.o" "C:\Users\krisw\DOWNLO~1\power_drv.o" "C:\Users\krisw\DOWNLO~1\usb_drv.o" "C:\Users\krisw\DOWNLO~1\usb_task.o" "C:\Users\krisw\DOWNLO~1\usb_standard_request.o" "C:\Users\krisw\DOWNLO~1\usb_device_task.o" "C:\Users\krisw\DOWNLO~1\uart_usb_lib.o" -o "C:\Users\krisw\DOWNLO~1\Flowcode1 (1).elf"
C:\Users\krisw\DOWNLO~1\usb_specific_request.o: In function `cdc_get_line_coding':
usb_specific_request.c:(.text+0xa8): undefined reference to `line_coding'
usb_specific_request.c:(.text+0xb0): undefined reference to `line_coding'
usb_specific_request.c:(.text+0xb8): undefined reference to `line_coding'
usb_specific_request.c:(.text+0xc0): undefined reference to `line_coding'
usb_specific_request.c:(.text+0xc8): undefined reference to `line_coding'
C:\Users\krisw\DOWNLO~1\usb_specific_request.o:usb_specific_request.c:(.text+0xd0): more undefined references to `line_coding' follow
C:\Users\krisw\DOWNLO~1\usb_specific_request.o: In function `cdc_set_control_line_state':
usb_specific_request.c:(.text+0x196): undefined reference to `line_status'
C:\Users\krisw\DOWNLO~1\usb_specific_request.o: In function `cdc_update_serial_state':
usb_specific_request.c:(.text+0x1a4): undefined reference to `serial_state'
usb_specific_request.c:(.text+0x1a8): undefined reference to `serial_state'
usb_specific_request.c:(.text+0x1fe): undefined reference to `serial_state'
usb_specific_request.c:(.text+0x206): undefined reference to `serial_state'

Error returned from [avr-gcc.exe]

C:\Program Files (x86)\Flowcode\Common\Compilers\avr\batchfiles\avra_usb.bat reported error code 1



FINISHED