Hi. I have installed IDE 2 for the first time and it loads ok and I can edit a sketch. When I use Verify or Compile it freezes. I can shut the IDE down but after that everything behaves eratically; IDE won't start or very slow to start, then freezes. Task Manager will eventually come up and shows multiple entries of Arduino IDE. Windows Explorer won't open or takes ages. PC needs to be re-booted to clear everything back to normal.
I am using Windows 10 and an Uno R3 board. This is my first attempt so I maybe doing something wrong. I found this Uno in my box, having bought it some time ago for a project that never happened. Thought i would give it ago but just can't seem to get it to work.
Hi @daveegreene. Arduino IDE automatically generates log files while it is running. I'm going to ask you to provide log file from your computer that was generated during an IDE session where the fault occurred. It might contain information that will help us to identify the problem.
Please do this:
- Perform whatever actions are needed in Arduino IDE to produce the fault, just as you did before.
- Reboot your computer to get it back into a fully functional state.
- Open a forum reply here by clicking the "Reply" button.
- Click the "Upload" icon (
) on the post composer toolbar:

A dialog will open.
- In the dialog, select the latest
.log file from this folder (the files are named according to the date):C:\Users\<username>\AppData\Roaming\Arduino IDE\
(where <username> is your Windows username)
ⓘ Note that the C:\Users\<username>\AppData folder is hidden by default. On Windows "File Explorer", you can make it visible by opening the "View" menu, then checking the box next to "☐ Hidden items".
- Click the "Open" button.
- Click the "Reply" button to publish the post.
Alternatively, instead of using the "Upload" icon on the post composer toolbar as described in steps (5) - (7) above, you can simply drag and drop the .log file onto the post composer field to attach it.
Please let me know if you have any questions or problems while following those instructions.
2023-09-11_log.log (374.7 KB)
Thanks for the prompt reply. It may help to know that inorder to re-boot the PC, I have to completely turn off the power. Just using the Restart option doesn't do it.
Hi. I haven’t found any solution other than going back to using IDE 1.x, which works fine. 