03-22-2022, 08:09 PM
Hi Fred, another error I don't know about. At one point I had an SD card running an older version of operating system and when I copied the new c++ compiled file it wouldn't load, I had to recompile. Try that and see if it works, use the following four commands.
sudo systemctl stop robotank.service
cd /var/www/html/cpp
g++ -o robotank robotank.cpp `mysql_config --cflags --libs` -lpthread -lquickmail -lcurl
sudo ./robotank
sudo systemctl stop robotank.service
cd /var/www/html/cpp
g++ -o robotank robotank.cpp `mysql_config --cflags --libs` -lpthread -lquickmail -lcurl
sudo ./robotank