LateX on Mac: Texmaker can't find installed package - package

Question

I have a Mac and just installed LaTeX and the editor Texmaker. To use the Arial font I installed it via MiKTeX Console. I also found out that by doing so, the files for the installed packages lay here:
"/Users/Mirko/Library/Application Support/MiKTeX/texmfs/install/tex/latex"
My problem is that the Editor (TeXMaker) still doesn't find the Arial-Font.
Here is my Code:
\documentclass[pdftex,openany,11pt,twoside,a4dutch]{report}
\usepackage{uarial}
\usepackage{csquotes}
\usepackage[ngerman]{babel}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{csquotes} % Setzen von Anführungsstrichen
\begin{document}
This is a test.
\end{document}
and here is the Error:
! LaTeX Error: File `uarial.sty' not found.Type X to quit or <RETURN> to proceed,or enter new name. (Default extension: sty)Enter file name:! Emergency stop.<read > \usepackage
But the folder arial and the file arial.sty are in the above mentioned folder.
In the MikTeX-Console I already entered the folder to Directories > Settings
I thankful for every help!
Thanks and greetings!
Here is the log-file from TexMaker:
This is pdfTeX, Version 3.14159265-2.6-1.40.20 (TeX Live 2019) (preloaded format=pdflatex 2019.10.27) 27 OCT 2019 13:34
entering extended mode
restricted \write18 enabled.
%&-line parsing enabled.
**test.tex
(./test.tex
LaTeX2e <2018-12-01>
(/usr/local/texlive/2019/texmf-dist/tex/latex/base/report.cls
Document Class: report 2018/09/03 v1.4i Standard LaTeX document class
(/usr/local/texlive/2019/texmf-dist/tex/latex/base/size11.clo
File: size11.clo 2018/09/03 v1.4i Standard LaTeX file (size option)
)
\c#part=\count80
\c#chapter=\count81
\c#section=\count82
\c#subsection=\count83
\c#subsubsection=\count84
\c#paragraph=\count85
\c#subparagraph=\count86
\c#figure=\count87
\c#table=\count88
\abovecaptionskip=\skip41
\belowcaptionskip=\skip42
\bibindent=\dimen102
)
! LaTeX Error: File `uarial.sty' not found.
Type X to quit or <RETURN> to proceed,
or enter new name. (Default extension: sty)
Enter file name:
! Emergency stop.
<read *>
l.5 \usepackage
{csquotes}^^M
*** (cannot \read from terminal in nonstop modes)
Here is how much of TeX's memory you used:
221 strings out of 492616
2365 string characters out of 6129480
60608 words of memory out of 5000000
4231 multiletter control sequences out of 15000+600000
3940 words of font info for 15 fonts, out of 8000000 for 9000
1141 hyphenation exceptions out of 8191
21i,0n,22p,110b,36s stack positions out of 5000i,500n,10000p,200000b,80000s
! ==> Fatal error occurred, no output PDF file produced!

Answer 1

As you can see from the first line of the log file
This is pdfTeX, Version 3.14159265-2.6-1.40.20 (TeX Live 2019)
texmaker is not using the miktex distribution for which you installed the uarial package, but a texlive distribution which seems to be also installed on your computer. In the long run it would be best to only have a single tex distribution on your computer to avoid such problems. For mac I would suggest to keep the texlive distribution and get rid of miktex, because texlive is used by most mac users and therefore well tested compared to miktex for mac.
Now you could force texmaker to use your miktex installation by modifying the texmaker preferences, but the easier way to use Arial in your document is to switch from pdflatex to xelatex or lualatex and directly use the arial font installed on your computer
% !TeX TS-program = xelatex
\documentclass[openany,11pt,twoside,a4dutch]{report}
\usepackage{fontspec}
\setmainfont{Arial}
\usepackage[ngerman]{babel}
\usepackage[utf8]{inputenc}
\usepackage{csquotes}
\begin{document}
This is a test.
\end{document}