Hello,
I could upload all the time when suddenly I got this error message when trying to upload to my nano
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Arduino: 1.8.19 (Windows Store 1.8.57.0) (Windows 10), Board: "Arduino Nano, ATmega328P (Old Bootloader)"
Sketch uses 12028 bytes (39%) of program storage space. Maximum is 30720 bytes.
Global variables use 930 bytes (45%) of dynamic memory, leaving 1118 bytes for local variables. Maximum is 2048 bytes.
avrdude: ser_open(): can't open device "\.\COM10": Access is denied.
Problem uploading to board. See https://support.arduino.cc/hc/en-us/sections/360003198300 for suggestions.
Invalid library found in C:\Users\mvand\Documents\Arduino\libraries\grbl-mi: no headers files (.h) found in C:\Users\mvand\Documents\Arduino\libraries\grbl-mi
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
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nano uses old bootloader on com port 10
scetch compiles fine
any help would be appreciated