can't run plotly dash on My jupyter notebook - jupyter-notebook

code
here is the error
enter image description here
TypeError: run_simple() got an unexpected keyword argument 'mode'

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can,t knit in R getting error Error in read_xlsx("Feb'22-divvy-tripdata.xlsx") : could not find function "read_xlsx"

trying to knit a document in R but keep getting message
"Error in read_xlsx("Feb'22-divvy-tripdata.xlsx") : could not find function "read_xlsx"
trying to knit a docutment and expecting a markdown report
Try rather with the function read_excel() from the library(readxl).
Or the function read.xlsx() of the library(openxlsx). (version 4.2.5.1)
Do not forget to install the packages if there are not already downloaded.

DataSpell not underlining errors

I'm not getting error highlighting in Jupyter notebooks in DataSpell like I do in Pycharm. For example in Pycharm, BTResults would be red underlined because I didn't import it and I wouldn't need to run the cell to to see the error:
I have my settings set up to check syntax:
Do you know why not defined variables aren't getting highlighted in DataSpell?

How to add image in R markdown on Mac. I used this but did not work ![This ](c:/Macintosh HD/Users/josephjaiyeola/Desktop/Rversion.png)

How to add image in R markdown on Mac. I used this but did not work:
![This ](c:/Macintosh HD/Users/josephjaiyeola/Desktop/Rversion.png)
I got this error :
Error: unexpected '[' in "! ["

Jupyter nbconvert fails to convert this line of LaTex

I'm attempting to convert a Jupyter Notebook to a pdf, but it throws this error at me:
nbconvert.exporters.pdf.LatexFailed: PDF creating failed, captured latex output:
Failed to run "xelatex notebook.tex -quiet" command:
notebook.tex:411: Missing $ inserted
notebook.tex:411: Extra }, or forgotten
notebook.tex:412: Missing $ inserted
It works if I take this LaTex out of my notebook:
$ y=\frac{1}{2}x+3 $
I'm not familiar with LaTex that much, but it displays correctly in the .ipynb file, so I'm assuming there is nothing wrong with this syntax. Is this an issue with nbconvert? Thank you!
After playing around a bit, I have solved the problem. It is an issue with LaTeX syntax. I wish jupyter notebooks make it to where the cell would show an error, but it doesn't. The correct syntax is the same as above except no spaces between the dollar signs. After changing that line of code to:
$y=\frac{1}{2}x+3$
nbconvert successfully made the PDF.

Markdown with Shiny not working on Mac. Error: path for html_dependency not provided Execution halted

I'm new to Shiny and I was just trying to see what's the result gonna look like and test out different data sets. I entered the code provided by Diego Lescano, you can find the full script here, http://datascienceplus.com/how-to-create-a-twitter-sentiment-analysis-using-r-and-shiny/
Everything ran through smoothly, however I wasn't able to see the final graph when I tried to knit. Instead, I received the following warning
output file: Final_Project.knit.md
Error: path for html_dependency not provided
Execution halted
I tried to knit to pdf and word as well, it all failed. Here's what my output looked like
output:
html_document: default

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