Sloeber fails to install because it can't get data from a specific URL

[ralphc-1965]

Once I install Sloeber it complains that the install can't be completed due to missing files.

From then on when restarted it gives the error about configuring Sloeber:
Failed to configer Sloeber
Failed to install [DEPRECATED] Arduino mbed-enabled Boards
Failed to download "http://downloads.arduino.cc/cores/ArduinoCore-mbed-nonexistant.tar.bz2".
Failed to download url http://downloads.arduino.cc/cores/ArduinoCore-mbed-nonexistant.tar.bz2 error code is: 404

Surprised that no one has an issue like this and created a bug report.

I am not behind a firewall but I am in the US on a standard US network (Frontier).

[jantje]

This is duplicate of #1196

Sloeber does not come with any platform (read boards) so it tries to install a platform and the platform sloeber tries to install has been deprecated.
Solution
install the platform of your choice at window->preferences->arduino->platform&boards
press on the > untill you can select a version you want to install
select apply and close and wait for it to finish (look at bottom right)
You are ready to roll

[ralphc-1965]

Thank you Jantje, Sorry for writing a bogus problem report. All works great now. Ralph

…

On Wed, Nov 18, 2020 at 6:54 PM jantje ***@***.***> wrote: This is duplicate of #1196 <#1196> Sloeber does not come with any platform (read boards) so it tries to install a platform and the platform sloeber tries to install has been deprecated. Solution install the platform of your choice at window->preferences->arduino->platform&boards press on the > untill you can select a version you want to install select apply and close and wait for it to finish (look at bottom right) You are ready to roll — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#1264 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ARZYNCVGEG6NMORMZK3OQ6TSQRNE7ANCNFSM4T2MRN2Q> .

[jantje]

reopening because many people do not search the closed issues.

[btribley]

I installed three times: twice on Windows because the first time I just left the path at the default and got the windows path nastygram. After installing in C:\eclipse and downloading the plugin ide I got this. Then I tried the plugin only and got this. Then I found the Sloeber one, installed it and got this. I was reaching for my Mac. Fortunately I found this post.

This is a nasty installer bug. No one will be able to install then start a project without getting knocked in the head. Suggest two possible solutions:

1. Strip out all default platforms and put up a big dialog box at the end of the install that says to go get a platform.
2. Instead of the completely cryptic error message of no board found in boards.txt at the expected location (which is empty) say "No boards found. Configure a platform in Windows-Preferences-Arduino and add a json file or board.

That would fix it! Many thanks for putting this tool together. I am hoping to be able to use it for the new AVR128DA* series because the Atmel Studio 7 is totally broken for them. The Arduino IDE works after installing DxCore but I can't work with such a limited tool.

[jantje]

Thanks for your input.

Strip out all default platforms and put up a big dialog box at the end of the install that says to go get a platform.

I'm a strong believer of "working out of the box". That is why I opted to install a platform if none is present.
Unfortunately -after a Arduino json update- the "selection options" Sloeber uses no longer selected the arduino avr platform but selects a platform that Arduino made uninstallable (I would have removed the platform from the json)

Instead of the completely cryptic error message of no board found in boards.txt at the expected location (which is empty) say "No boards found. Configure a platform in Windows-Preferences-Arduino and add a json file or board.

I get your point. The problem is ... this should never have happened. The root cause is Arduino who publishes a platform that can not be installed. Which -I assume by accident- is picked by Sloeber as the platform to install if no platform is found.
When Sloeber starts the first time it adds: examples, make(on windows); libraries and a platform. Normally all this should work.
Because people start Sloeber and don't know this is happening the message is cryptic.
If the user initiated the installation of a platform the message would be way less cryptic. Especially because the name of the platform contains "deprecated" ;-)