Suddenly manim doesnt run - manim

I've installed manim recently and run many animations so far, but a few hours ago I realized that even the simplest code that used to run no longer does. I must have messed up somewhere without realizing it... This is what I get every time:
AttributeError: module 'manimlib' has no attribute 'constants'
Any ideas? Thanks a lot in advance!!

Not a master on this topic, but there is a file named 'constants.py' inside the manimlib folder that can be possibly missing or damaged... try replacing it with the original one: https://github.com/3b1b/manim/blob/master/manimlib/constants.py

Related

Rails already initialized constant HELP_MAPPINGS

I am working through the Ruby on Rails Tutorial Sample app and I don't understand how I can fix the warning and the multiple tests that get run every time but don't do anything.
Screenshot of multiple tests running with the warning.
I am unsure if this is messing with performance or if it something I should just ignore, but I would like to resolve this issue if possible.
Thanks for the help, friends!

Issue with Rails Generator Building a Plugin

I am building a Rails plugin for an application at work.
I want to extract logic that was used in multiple locations, but implemented slightly differently, and add new features needed without doing it 2-3 times over.
I've never build a gem, but according to what I was reading it is possible to use rails generate.
However this has not been the case for me.
Running rails g model Something stuff:type:
First interesting thing is that it is generating mini test stuff when I explicitly told the plugin not to use mini test (using Rspec).
Then looking in my folder structure for the plugin, no db/ folder, nothing added to app/models/, and no test/ folder:
Running the command a second time reveals to me that the files are indeed created:
My questions are:
Where is this stuff going? Can I even find out?
Has anyone encountered something similar? Is it due to a misconfiguration, or bug? Essentially, what's happening?
I would truly appreciate any advice or suggestions!
EDIT #1
Forgot to mention that I checked within the spec/dummy application in case things were being created there, and it is still empty as I left it.
EDIT #2
So I found where the files were by using the find command:
And yeah it added the files to my home folder...
At least now I can just paste them in the right location, but obviously this is bizarre and I'd like to get this resolved, figure out what is going on.
Okay so turns out that yes you may use Rails Generators when building a gem. Also, the generated files will not be placed inside the dummy application unless you are in that directory.
Everything is working as expected on a different computer.
That stuff is going into dummy app that is usually located in test/dummy. In your case, it seems to be located in specs/dummy.
Yeap and nope. That's not misconfiguration.

Psych Error: `parse': (<unknown>): could not find expected

`':' while scanning a simple key at line 16 column 1(Psych::SyntaxError)
I'm working on a Rails application tutorial and have had the above error come up several times. When I was getting this error it seemed to only be a problem if I used one particular terminal window. I have since restarted the computer and now it is a problem regardless of what I do.
I went to the project on github and copied the information in 'secrets.yml' into my file in case that was the issue but doesn't help. In fact I'm not sure if that is even the file causing the problem because when I shift the code in that file and save it I still get the same error; at those times it points to a line that is now blank in the 'secrets.yml'
Update.
now I am getting this when i run this command
rails generate simple_form:install --foundation
-bash: $: command not found.
only change I did was start the code in 'secrets.yml' lower down, and i added a secret key to my .bash_profile, as it was suggested in tutorial and I had not done it before, and thought that might be the problem.
Update 2
shut down terminal and tied again and getting the original problem "psyche Error" Yes, thank you for your feedback, I too, although not sure why, suspect it is to do with the 'secret' file or could it be changes the tutorial told me to make to my .bash_profile. The instructions were not very clear, wondering if that is where I messed up. If that is so then I would not know how to fix that.
The Psych gem is the wrapper around libyaml and used within Ruby's YAML class, so it's not surprising you think it could be the 'secrets.yml'; a YAML config file. I'd stay the course and find what isn't being formatted correctly.

Rails: How to make require reload on every refresh?

I've notice that when I include password hashing with require "digest/sha1" on top of my model, every time I make some change in my app, I have to restart server to see changes.
That is kind of annoying and it is slowing down development a lot, especially for beginner like me.
I've seen somewhere that with require_dependency "digest/sha1" it should work, but it is not working for me (saying no file error).
I'm not sure even where to put require_dependency as I haven't found any example.
There should be some way to make it work, as it is quite common problem, maybe I was just looking to wrong places.
Thanks
EDIT :
I've came to conclusion that error comes when my Ubuntu machine goes to sleep. After wake up, local server (tried thin and WEBrick) give that error.
EDIT :
It has nothing to do with Ubuntu sleep. I had a function named hash that was giving errors every time, complaining that it got wrong number of arguments, but that function was never called.
So, I've renamed it to encrypt and now it is working, but I'm not 100% sure that it is solution, I have to test is more.
If it will be ok, that would be a strange bug, I will post an answer.
In development mode, by default, anything in app/ or config/routes.rb is reloaded between requests. If this is not happening for you, it's probably not caused by the require. It's more likely that you've turned off reloading inadvertently.
I've used digest/sha1 in many projects before and have never had this problem, usually including it in the User model where it's used.
Can you replicate this problem in a brand new Rails project? Does the problem go away if you remove that line? If so that is very odd.
If you remove require "digest/sha1" all works fine?
Anyway check for config.cache_classes = false in config/environments/development.rb

ruby on rails unable to find interface that appears to be proplery defined

I'm brand new to ruby on rails and trying to run an application developed by others. I downloaded it from SVN it running yesterday, but today when I try to run it the first attempt to access the site's home page I get the message:
expected .../app/helpers/interface/table_helper.rb to define Interface::tableHelper.
.../lib/active_support/dependencies.rb:452:in 'load_missing_constant'
This file exists, and properly defines the tableHelper interface. Since I was able to run the program when I was setting it up yesterday, and others can run it without issue, I assume the problem I'm seeing is caused by an incorrectly set up environment rather then bad code somehow.
Can anyone suggest what I might try to figure out why rails can't seem to detect a properly defined interface?
If you were able to run the program once, perhaps something got screwed up? Have you made any changes to the code?
Alternatively, try stopping and restarting the server.
Also: what's the application? Maybe we can look at the codebase...

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