Can't compile..
__vector_16' referenced in section .vectors' of c:/users/user/appdata/local/arduino15/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/crtatmega328p.o: defined in discarded section .text' of wiring.c.o (symbol from plugin) c:/users/user/appdata/local/arduino15/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/crtatmega328p.o:(.init9+0x0): undefined reference to main'
collect2.exe: error: ld returned 1 exit status
exit status 1
Error compiling for board Arduino Nano.
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Your topic was MOVED to its current forum category as it is more suitable than the original
Please post your sketch, using code tags when you do
void setup() {
// put your setup code here, to run once:
}
void loop() {
// put your main code here, to run repeatedly:
}
It looks like your Arduino IDE install is incomplete or damaged. Install the latest IDE (1.8.19):
Then try your compile again.
I did try compile again... at 1.8.19 and 1.8.18 (Zip and install ver.)
I did uninstall and reinstall 5 times...
it's same
set your Arduino Preferences to show all compiler warnings
then try compiling the IDE Example 01.Basics / Blink
post the full output of the compiler messages in code tags.
Maybe something has corrupted the downloaded AVR support.
In the IDE select:
Tools -> Board: -> Boards Manager...
In the Boards Manager dialog, install an older "Arduino AVR Boards" version (like 1.8.4) and then re-install the latest version (1.8.5). I hope that will fix whatever has gone wrong.
If that doesn't fix it, I would shut down the IDE, delete the whole c:/users/user/appdata/local/arduino15 directory, re-start the IDE, and re-install the latest AVR support with Boards Manager. (If you have installed support for other boards you will have to re-install them as well.)
Thanks for guides.
but my porblem has been remained.. 
C:\Users\user\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.5\cores\arduino\new.cpp: In function 'void* operator new(std::size_t, std::nothrow_t)':
C:\Users\user\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.5\cores\arduino\new.cpp:59:60: warning: unused parameter 'tag' [-Wunused-parameter]
void * operator new(std::size_t size, const std::nothrow_t tag) noexcept {
^~~
C:\Users\user\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.5\cores\arduino\new.cpp: In function 'void* operator new [](std::size_t, const std::nothrow_t&)':
C:\Users\user\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.5\cores\arduino\new.cpp:68:63: warning: unused parameter 'tag' [-Wunused-parameter]
void * operator new[](std::size_t size, const std::nothrow_t& tag) noexcept {
^~~
C:\Users\user\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.5\cores\arduino\new.cpp: In function 'void operator delete(void*, const std::nothrow_t&)':
C:\Users\user\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.5\cores\arduino\new.cpp:103:55: warning: unused parameter 'tag' [-Wunused-parameter]
void operator delete(void* ptr, const std::nothrow_t& tag) noexcept {
^~~
C:\Users\user\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.5\cores\arduino\new.cpp: In function 'void operator delete [](void*, const std::nothrow_t&)':
C:\Users\user\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.5\cores\arduino\new.cpp:106:57: warning: unused parameter 'tag' [-Wunused-parameter]
void operator delete[](void* ptr, const std::nothrow_t& tag) noexcept {
^~~
__vector_16' referenced in section .vectors' of c:/users/user/appdata/local/arduino15/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/crtatmega328p.o: defined in discarded section .text' of wiring.c.o (symbol from plugin) c:/users/user/appdata/local/arduino15/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/crtatmega328p.o:(.init9+0x0): undefined reference to main'
collect2.exe: error: ld returned 1 exit status
exit status 1
Sorry. If deleting everything and re-installing the latest version doesn't fix it I don't know what will.
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