ATmega128 - UCSROA undeclared (first use in this function) - avr

Question

I have a question about ATmega128 (UART)
This program sends Hello message through UART.
The following is my code.
#include <avr/io.h>
void putch(unsigned char data)
{
while((UCSROA & 0x20) == 0);
UDR0 = data;
UCSROA |= 0x20;
}
int main()
{
unsigned char text[] = "Hello! World!\r\n";
unsigned char i = 0;
DDRE = 0xFE;
UCSROA = 0x00;
UCSROB = 0x18;
UCSROC = 0x06;
UBRROH = 0x00;
UBRROL = 0x03;
while(text[i] != '\0')
putch(text[i++]);
return 0;
}
This is error messages.
Build succeeded with 0 Warnings...
avr-gcc -mmcu=atmega128 -Wall -gdwarf-2 -std=gnu99 -DF_CPU=7372800UL -Os -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums -MD -MP -MT Hello.o -MF dep/Hello.o.d -c ../Hello.c
../Hello.c: In function 'putch':
../Hello.c:5: error: 'UCSROA' undeclared (first use in this function)
../Hello.c:5: error: (Each undeclared identifier is reported only once
../Hello.c:5: error: for each function it appears in.)
../Hello.c: In function 'main':
../Hello.c:16: error: 'UCSROA' undeclared (first use in this function)
../Hello.c:17: error: 'UCSROB' undeclared (first use in this function)
../Hello.c:18: error: 'UCSROC' undeclared (first use in this function)
../Hello.c:19: error: 'UBRROH' undeclared (first use in this function)
../Hello.c:20: error: 'UBRROL' undeclared (first use in this function)
make: *** [Hello.o] Error 1 Build failed with 8 errors and 0 warnings...
I tested my code other computers.
But, It's not working.
I don't know how to fix this problem.
Give me some advice.
Thanks.

Answer 1

Its not
UCSROA
with the letter "O", it is
UCSR0A
with the number 0.