I first set upload.using=avrisp in preferences.txt file. There after I started Arduino IDE and start a verbose upload. :avrdude v5.4using port com5using programmer stk500v1
doesn't change anything
avrdude: ser_open(): can't open device "usb": Das System kann die angegebene Datei nicht finden.
Qustion now what is wong whith my settings. May I ask you sending me a copy of your ...programmers- ...boards- ...avrdude.config-files and what ever ma bee importand.