to answer to my question, please look at the below link:
http://zetcode.com/articles/cdatetime/
that in the paragraph: Formatting time, explain all the "strange" formating parameters that I asked the help for...

Best Regards,
Mike Kranidis

Dear Sirsm I am making my first steps in ESP32 running with the Arduino IDE. I found an example that using the time.h internal library, you can have ntp time. The example is: SimpleTime.ino My problem is I can not understood one commant that this SimpleTime.ino is using, more precicely: [void printL...

And the solution to the reported problem is:
There is an autorebase.bat file in msys2 directory, if you run it this will solve the problem.

This is a solution proposed by @negativekelvin at https://github.com/espressif/esp-idf/issues/1649

Thnaks and Best Regards,
Mike Kranidis

Dear Sirs, today I did a new installation in my Windows 10 64bit laptop, following the instructions: https://esp-idf.readthedocs.io/en/latest/get-started/windows-setup.html What I did: I download the Toolchain using ==> https://dl.espressif.com/dl/esp32_win32_msys2_environment_and_toolchain-20180110...

Hi Mike, Thanks for pointing out this shortcoming in the documentation. Probably the easiest thing you can do is to download the new full precompiled environment, and copy the "C:\msys32\home" directory from your old environment into the new one. Alternatively for this upgrade, you can just downloa...

Dear Sirs, in my Windows 10 computer I have Windows all-in-one toolchain & MSYS installed as well as ESP-IDF, My problem is, I am not sure how to update the toolchain & MSYS. Today when I visited: https://esp-idf.readthedocs.io/en/latest/get-started/windows-setup.html I saw that a new toolchain & MS...

... to answer to my question, it is necessary to put Windows names com port at make menuconfic, inmy case COM6 did the trick.
Then everything was worked fine...

Dear Sirs, in my Windows 10 computer, I have just installed the ESP-IDF following the steps in page(s) http://esp-idf.readthedocs.io/en/latest/get-started/index.html I did compile without problem ( and it is running ) the "hello_world" example. The only problem I have is when I am trying to make mon...