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pi@raspberrypi:~ $ sudo apt update

Get 1http://archive.raspberrypi.org/debian buster InRelease [32.6 kB]

Get:2 http://raspbian.raspberrypi.org/raspbian buster InRelease [15.0 kB]

Get:4 http://archive.raspberrypi.org/debian buster/main armhf Packages [330 kB]

Hit:3 https://packagecloud.io/headmelted/codebuilds/debian stretch InRelease

Ign:5 https://packagecloud.io/rabbitmq/rabbitmq-server/raspbian buster InRelease

Get:6 http://raspbian.raspberrypi.org/raspbian buster/main armhf Packages [13.0 MB]

Err:7 https://packagecloud.io/rabbitmq/rabbitmq-server/raspbian buster Release > 404 Not Found [IP: 54.183.113.236 443] Reading package lists... Done

E: The repository 'https://packagecloud.io/rabbitmq/rabbitmq-server/raspbian buster Release' does not have a Release file.

N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details.

I was trying to update packages and found that there is an error caused by the Rabbit MQ which I installed earlier.

I still remember that I was following some instruction to modify sources.list or sources.list.d or maybe other file to add RabbitMQ's url, but I forget where it is.

I opened the /etc/aptsources.list and there isn't the rabbitmq url.

How can I find where and what file is the string 'https://packagecloud.io/rabbitmq/rabbitmq-server/raspbian buster Release' located?

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See if you have the file /etc/apt/sources.list.d/bintray.rabbitmq.list Or /etc/apt/sources.list.d/bintray.erlang.list and if so move them out.

Then run sudo apt update

If I remember correctly, you have a couple of goes at different installers with Erlang...

You can track your previous questions by looking at your profile here in your case.

Note the above MAY WELL be wrong as I'm not sure how you got everything installed first and hence the move not delete recommendation.

  • Great~! finally my problem is solved, you are correct, there is the file /etc/apt/sources.list.d/bintray.rabbitmq.list thanks a lot~! – Franva May 31 '20 at 23:59

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