why does my command prompt showing like this? [closed] - node.js

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Your environment has been set up for using Node.js 14.16.1 (ia32) and npm.
C:\Users\Arthi>git---version
'git---version' is not recognized as an internal or external command,
operable program or batch file.
C:\Users\Arthi>

as said by #Tanner Dolby in comment you should try git --version
If the problem exists then you should install git properly
It is already answered here https://stackoverflow.com/a/4493004

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What is "neg_mean_absolute_error" and where can I find it? [closed]

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Closed 2 years ago.
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I am new to machine learning. I am trying to learn feature selection from this link. Here they have a line of code which is given below
search = GridSearchCV(pipeline, grid, scoring='neg_mean_squared_error', n_jobs=-1, cv=cv)
But whenever I try to run this code I get the error
I cannot find where to import neg_mean_squared_error from. I am not sure where I should write the function myself or not. The tutorial isn't clear on this issue.
It is just a typo.
You need
neg_mean_absolute_error
You typed
neg_mean_absolure_error
using an r instead of t
Reference: https://scikit-learn.org/stable/modules/model_evaluation.html

Bash terminal error when using 'unmask' command [closed]

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Any time i type the 'unmask' command in my bash terminal i get the error below:
'bash: unmask: command not found'
Please, any ideas on how i can solve this problem, I believe 'unmask' is a built in command.
I am using bash --version 5.0.16(1)
Could it be that you actually meant umask?

Problem with compiling the code by terminal in linux [closed]

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Closed 3 years ago.
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I have a problem with compiling the code in the terminal. As in the photo, When I compile the code, it shows the same answer
The file elnur.c is not saved, because it has (*elnur.c), the '*' sign means that the file is not save.
Save the file and run again.

What happens if I type > / on linux [closed]

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Closed 7 years ago.
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When I type > file.extension I know that the file is replaced by a empty file.
What if then I type > / ? My / partition will be erased and I'll lost everything in it?
I'm curious and wondering if someone already tried this.
You cannot redirect to a directory

Compass Flexbox [closed]

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Closed 7 years ago.
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I'm trying to test this flexbox layout model in compass.
I run into problem, when I copy entire example to my localhost: http://compass-style.org/examples/compass/css3/flexbox/
I get following error:
error: assets/sass/main.scss (Line 94 of /Users/xyz/.rvm/gems/ruby-2.0.0-p481#global/gems/compass-core-1.0.1/stylesheets/compass/css3/_flexbox.scss: Mixin flexbox takes 0 arguments but 1 was passed.)
To compile my scss files I use grunt-contrib-compass
ruby: 2.0.0p481 (2014-05-08 revision 45883) [x86_64-darwin13.1.0]
compass: Compass 1.0.1 (Polaris)
Sass 3.4.3 (Selective Steve)
grunt-contrib-compass: "~0.9.1"
Same error I get when I run 'Compass watch'.
Any ideas why is this happening?
It was a but, I had duplicate mixin :P

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