Installation problems shiny

...Dear,
I want to learn shiny and I am disappointed again. I got this error. Please help. Thanks

ERROR: dependency 'fastmap' is not available for package 'shiny'

  • removing 'C:/Users/Achim/Documents/R/win-library/3.4/shiny'
    In R CMD INSTALL
    Warning in install.packages :
    running command '"C:/PROGRA~1/R/R-34~1.3/bin/x64/R" CMD INSTALL -l "C:\Users\Achim\Documents\R\win-library\3.4" C:\Users\Achim\AppData\Local\Temp\Rtmpob7xl8/downloaded_packages/shiny_1.4.0.2.tar.gz' had status 1
    Warning in install.packages :
    installation of package ‘shiny’ had non-zero exit status

Have you tried installing the missing dependency? Do you get any error message while doing so?

install.packages("fastmap")

You cloud try updating your R version so you can install the binary instead of having to compile.

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this is not possible beause it is fortran code this I got:

Installing package into ‘C:/Users/Achim/Documents/R/win-library/3.4’
(as ‘lib’ is unspecified)
Package which is only available in source form, and may need compilation of
C/C++/Fortran: ‘fastmap’
These will not be installed

this specifically ? https://cloud.r-project.org/bin/windows/base/R-4.0.1-win.exe

we cant help you unless you share the detail of the error(s)

What is R for a ■■■■!!!!!!!!!!!!!! I download the new version and got new errors but no shiny!!!!!!!!!!!!
How I can get this programm fast???