Here I had a discussion about to mark the headline with the tag [Solved]: Rpi4B Raspbian 10 buster Adafruit-blinka Installation Problem [Solved]. I remember that one of the moderator has written for some time in an other comment anywhere not to do this, instead accept the answer. But I cannot find it anymore. So I looked for a policy to this in the Help Center but couldn’t find anything about this. Also searching here on metha I cannot find relevant matches.
So my question: is there a policy how to handle marking headlines with [Solved]? How should this be handled?
It doesn’t look like there’s a specific question on Raspberry Pi Meta, but there’s a question on Meta Stack Exchange, the network-wide meta site, which answers this. As stated in ChrisF’s answer there:
You’re right, putting “[SOLVED]” in the title is not the right thing to do.
If the OP made the edit then leave a comment explaining the correct behaviour – i.e. post the solution as an answer.
If someone else made the edit then roll back the edit and leave a comment addressed at the editor explaining the right thing to do.
While it is customary on some forums to do this, no Stack Exchange site encourages adding [SOLVED] to the title — just accept an answer, and the interface will show the question to be solved:
Image from Meta Stack Exchange.
It could be useful to put “[solved]” into the question title if you’re about to post a self-answer afterwards. That saves the effort of people trying to answer the question before the self-answer is posted.
Once the self-answer is there, one could remove the “[solved]” tag to make the question look normal.
I read MagPi 84 Aug 2019 page 44 Melissa LeBlanc_Williams’s article on using Rpi4 circuitPython to control a robot using two boards:
I followed the instructions to install python3, setup tools, adafruit-blinka library. I got stuck at Step 8:
pip3 install adafruit-blinka
The error message was:
cannot find version that satisfies the requirement, … no matching distro found for adafruit-blinka
My configuration is Rpi4B 2GB Raspbian 10 buster.
Any help or tip appreciated.
@milliways’ Rpi4B buster works OK. I am not sure if the reason is that my kernel is too old. I need to update my kernel and tried again.
I checked that my raspbian release date was 2019jun20. The latest release is 2019jul10. I guessed beside the kernel, there might be other packages or drivers out of date. I might have also installed other conflicting software when I played with other things earlier. So I guessed the cleanest solution is to start everything from scratch: download the latest raspbian, and first thing first is to install Adafruit circuit python blinka.
So I installed Raspbian (buster 2019jul10) again. The welcome screen says the release page is not ready, until some 20 days later. I guess this might cause trouble. So I exit GUI desktop straight away and start installing circuit python blinka in terminal mode.
This time everything went smoothly. My conclusion that the root cause of my installation problem is that my Raspbian dated 2019jun20 is out of date. I might also installed other packages earlier and they crash with circuit python’s blinka library.
Anyway, problem solved.
sudo pip3 install adafruit-blinka Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple Collecting adafruit-blinka Downloading https://www.piwheels.org/simple/adafruit-blinka/Adafruit_Blinka-2.2.0-py3-none-any.whl (79kB) 100% |################################| 81kB 123kB/s
- Original Installation Raspberry Pi reference 2019-06-20 - Current OS Distributor ID: Raspbian Description: Raspbian GNU/Linux 10 (buster) Release: 10 Codename: buster - Kernel 4.19.58-v7l+ - Model Raspberry Pi 4 Model B Rev 1.1