On the first PC, go to Tools > Board > Boards Manager and ensure the toolchain (compiler, uploader) is fully installed. For AVR, check that avr-gcc is inside \Arduino15\packages\arduino\tools\ .
Report: Arduino IDE 2 Portable Mode As of early 2026, in the same way its predecessor (1.x) did. While version 1.x allowed you to simply create a folder named portable within the installation directory to store all libraries, boards, and sketches, version 2.x was a complete rewrite and this specific feature was not carried over.
To make IDE 2 portable, you must force it to store its libraries, boards, and configuration files within its own directory rather than the default user folders. 1. Download the "ZIP" Version Go to the Arduino Software page . Download the or Linux AppImage .
On the first PC, go to Tools > Board > Boards Manager and ensure the toolchain (compiler, uploader) is fully installed. For AVR, check that avr-gcc is inside \Arduino15\packages\arduino\tools\ .
Report: Arduino IDE 2 Portable Mode As of early 2026, in the same way its predecessor (1.x) did. While version 1.x allowed you to simply create a folder named portable within the installation directory to store all libraries, boards, and sketches, version 2.x was a complete rewrite and this specific feature was not carried over.
To make IDE 2 portable, you must force it to store its libraries, boards, and configuration files within its own directory rather than the default user folders. 1. Download the "ZIP" Version Go to the Arduino Software page . Download the or Linux AppImage .