Error Downloading ATTinyCore on Boards Manager

Development Tools IDE 2.x
1

As the title suggests, I am unable to download ATTinyCore by Spence Konde on Boards Manager (Arduino 2.2.1). It shows up for me in Boards Manager, but when I click "Install" I receive the following error message: Failed to install platform: 'ATTinyCore:1.5.2'. 2 UNKNOWN: Get "https://azduino.com/bin/micronucleus/micronucleus-cli-2.5-azd1-x86_64-apple-darwin.tar.bz2": tls: failed to verify certificate: x509: certificate has expired or is not yet valid: “azduino.com” certificate is expired.

I have already reviewed the threads ATTINYCORE on IDE 2.2.1 and 2.2.1 board manager, download additional boards. None of the solutions that seemed to work for others worked for me. This includes downloading micronucleus and putting it in /Users/<username>/Library/Arduino15/staging/packages/ (I'm on a mac). I have also changed the file name from package_drazzy.json to package_drazzy.com_index.json in the Arduino15 folder. Neither of these things worked for me.

I would appreciate some help on this matter. I hope I'm missing something obvious that will be simple to fix, but I can't see what. Granted, I also don't have much experience with this kind of thing. Also, please excuse any formatting or etiquette errors I've made; I'm not particularly familiar with the Arduino Forum.

Thanks in advance. Depending on how quickly replies come in, I'll hopefully be able to respond. It's pretty late where I am though, so my responses might dry up. In the morning I'll check again though.

2

Hi @heydenyo. Excellent work on finding those posts while researching the solution to this fault!

Please verify that the following file exists on your computer at this exact path:

/Users/<username>/Library/Arduino15/staging/packages/micronucleus-cli-2.5-azd1-x86_64-apple-darwin.tar.bz2

(Where <username> is your macOS username)

3

Thanks for the reply!

When I type that file path into "Go" in Finder (adjusting for my username, of course), nothing happens. So it's possible I don't actually have the file, but there is a blue folder entitled "micronucleus" under "staging" and then "packages" in Arduino15. Is that different from the file that I should have?

4

I think so. You probably extracted the downloaded micronucleus-cli-2.5-azd1-x86_64-apple-darwin.tar.bz2 file (e.g., using "Archive Utility") to the target folder instead of simply copying the downloaded file there.

Try following the instructions again, but this time make sure you copy the micronucleus-cli-2.5-azd1-x86_64-apple-darwin.tar.bz2 file to the /Users/<username>/Library/Arduino15/staging/packages/ folder.

5

That worked! I can now download ATTinyCore successfully. Thank you so much for your help!

6

You are welcome. I'm glad it is working now.

Regards,
Per