File "c:\users\daveh\appdata\local\programs\python\python36\lib\site-packages\mpfmc\uix\widget.py", line 960, in _repr__
return '<WidgetContainer id={} z={} key={}>'.format(self.id, self.z, self.key)
File "kivy\properties.pyx", line 506, in kivy.properties.Property.__get__
RecursionError: maximum recursion depth exceeded while calling a Python object
2019-07-01 17:56:49,283 : kivy : Stopping child threads... (1 remaining)
2019-07-01 17:56:50,288 : kivy : All child threads stopped.

The line about widget.py is listed over and over again in the log with that line about returning the WidgetContainer. I get this every time I'm trying to run the media controller. Attempting to start the demo_man example (with "mpf both -X") it looks like the MC tries to start, but then exits (with the above error). The mpf then says in a white line in the middle: "WAITING FOR MEDIA CONTROLLER localhost:5050". And that will just sit there.

I apologize if I missed something in the tutorial or docs, however, I was cutting and pasting right out of the docs step by step. This is running on Windows 10 1809 and I am using the 0.52 examples.

Thanks for any assistance or info that can lead me to an answer. I'm not familiar with python, but I'm always willing to learn.

#2 4 years ago

RLL

BobLangelius

Bob's Pinball Stuff

Trumbull, CT

10y 70,850 804 2

Dave,
Have you tried asking here:

https://groups.google.com/forum/#!forum/mpf-users

#3 4 years ago

DAV

DaveH

Pinside+ Frequent

Boston, MA

11y 121K 7,881 21 13

Quoted from BobLangelius:
Dave,
Have you tried asking here:
https://groups.google.com/forum/#!forum/mpf-users

Thanks. Giving that a shot now.

#4 4 years ago

JAB

jabdoa

Inactive member

7y 46,050 448

Unfortunately, a known issue currently in 0.52.3. It should be fixed in MPF-MC 0.52.4. You can upgrade using:

pip3 install --upgrade mpf mpf-mc

Kivy 1.11.0 causes this. In 0.52.3 you need to downgrade kivy manually to 1.10.1 using:

pip3 install kivy==1.10.1

#5 4 years ago

DAV

DaveH

Pinside+ Frequent

Boston, MA

11y 121K 7,881 21 13

Yup, I was about to post that response from the other board here in case someone ever found this page on google. Thanks for the help.

#6 4 years ago

DAV

DaveH

Pinside+ Frequent

Boston, MA

11y 121K 7,881 21 13

Ok, just to close this one out totally:

After doing this, I still had the issue, but that was caused by me trying to "fix" it. When this hadn't worked originally, I ended up upgrading Python (I had 3.6 and 3.7 installed). So this fix (pip3 install kivy==1.10.1) didn't work for me. I had to uninstall python 3.7, and then I could see that the 3.6 install still had kivy 1.11.1. I then downgraded the kivy in python 3.6, and poof, things started being able to run. And with that, I'm on my way to finding the next way to mess this up

4 months later

#7 4 years ago

DOG

RatShack

Pinside member

7y 57,650 783

Thanks for posting this, I just ran into the same issue following the tutorial.

3 years later

#8 1 year ago

CWG

cwg29

Pinside+ Frequent

Glendale, AZ

12y 64,150 372 1

I found this on google groups and it worked for me. I have Win10 and it seems you have to roll back the version a tad with the following command lines:

pipx install "mpf-mc==0.56.0.dev33" --pip-args="--pre" --verbose --include-deps
and after
pipx inject mpf mpf-mc==0.56.0.dev33 --pip-args="--pre" --verbose --include-deps --include-apps

#9 1 year ago

JOG

Gillen

Pinside member

5y 30,300 112

Quoted from cwg29:
I found this on google groups and it worked for me. I have Win10 and it seems you have to roll back the version a tad with the following command lines:
pipx install "mpf-mc==0.56.0.dev33" --pip-args="--pre" --verbose --include-deps
and after
pipx inject mpf mpf-mc==0.56.0.dev33 --pip-args="--pre" --verbose --include-deps --include-apps

Roll back? You are bringing life to a three year old thread. But yeah, the rollback may be needed on Windows if you go for latest version directly.

#10 1 year ago

CWG

cwg29

Pinside+ Frequent

Glendale, AZ

12y 64,150 372 1

Quoted from Gillen:
Roll back? You are bringing life to a three year old thread. But yeah, the rollback may be needed on Windows if you go for latest version directly.

I personally don't care how old a thread is. I still search the forum for methods and guides that people wrote years ago and still answer to projects I started in 2012. Who cares when looking for clues while troubleshooting. Not to pass on solutions is a disservice. There are always pinball forum nazis that police every post because of boredom I suppose. Hope the info helps someone out. MPF is fantastic but is bare bones and with a great community sharing their issues and solutions it can be a lot of fun and very powerful software to use.

#11 1 year ago

JOG

Gillen

Pinside member

5y 30,300 112

Quoted from cwg29:
I personally don't care how old a thread is. I still search the forum for methods and guides that people wrote years ago and still answer to projects I started in 2012. Who cares when looking for clues while troubleshooting. Not to pass on solutions is a disservice. There are always pinball forum nazis that police every post because of boredom I suppose. Hope the info helps someone out. MPF is fantastic but is bare bones and with a great community sharing their issues and solutions it can be a lot of fun and very powerful software to use.

You copied my answer from the Google group so I do know what it do. The thing is the version will probably be obsolete as soon next dev version is released. Not sure how it's being a forum Nazi when questioning a reviving of a three year old thread, specially when your answer doesn't have anything with the OP's original question to do. But yeah, you are right, with this answer I'm a forum Nazi. Sorry.

#12 1 year ago

CWG

cwg29

Pinside+ Frequent

Glendale, AZ

12y 64,150 372 1

Quoted from Gillen:
You copied my answer from the Google group so I do know what it do. The thing is the version will probably be obsolete as soon next dev version is released. Not sure how it's being a forum Nazi when questioning a reviving of a three year old thread, specially when your answer doesn't have anything with the OP's original question to do. But yeah, you are right, with this answer I'm a forum Nazi. Sorry.

Thanks for sharing your solution. Maybe I jumped on the wrong thread when I came back from my search. Glad you're out there keeping a close eye on things.

1 month later

#13 1 year ago

LIN

Linolium

Pinside member

11y 66,350 966 6

Nah, I agree with you. Nuts to the age of a thread. If it’s useful, resolution hasn’t be fully posted, or additional information is available then use the thread- don’t fragment and make a new thread. The additional info you found was not in this thread (unless I’m misreading something), regardless of who originally posted elsewhere, so it makes 100% sense to post here as well.

And look at me! Reviving a thread from 48 days ago… but it’s still within the first 20 posts…

</End off topic>

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