Arduino ide 2.0.1 unable to open multiple window

how to open multiple window on arduino ide 2.0.1, i already uninstall and reinstall but still the same only 1 window opened. thank you

Hi @donimart. Please tell me exactly what you are doing to try to open multiple windows.

i try to open several sketch from different folder but only 1 window showed

i noticed something strange when i open 1 sketch this happen

That is still a very vague description, but I'll just go ahead and assume you are opening sketches via file association. There is a known bug in Arduino IDE 2.0.1 that causes subsequent sketches you attempt to open via file association to not open:

The IDE developers have already prepared a fix, so this will be resolved soon. Until then, the workaround is to open sketches via the Arduino UI, using any of the available methods:

  • File > Open
  • File > Sketchbook
  • The "Sketchbook" view in the side panel

I don't notice anything out of the ordinary there.

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but i am able to open multiple sketch with arduino ide 1.8.10

Yes. The bug is specific to Arduino IDE 2.0.1.

usually i open several sketch directly from folder/file explorer not from the UI and ok with 1.8.10

and works to open from UI v 2.0.1. but i prefer to open from file explorer. thank you

OK, then you will need to use a version of the IDE prior to 2.0.1 until the bug is fixed.

If you have a GitHub account, you can subscribe to the issue I linked above to get a notifications when it is fixed. The day after that, the fix will be in the Arduino IDE nightly build:

https://www.arduino.cc/en/software#nightly-builds

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