An unexpected error occurred when locating the Git executable.

[AuchKeiner]

The Library Manager and the Board Manager find nothing!

My Pc
Windows 10
i5-6600K
16gb ram
GTX 1060 gb

My Arduino
Arduino Nano oldBootloader

Status update after snapshot
Although I had to install the board manually, I can now select a board.
I still can not choose a port

[moghaddam]

The same happens on my Ubuntu machine with the following stack trace:

root WARN EditorNavigationContribution.onStart is slow, took: 207.4000000138767 ms                                                                                                                                 
root ERROR Request repositories failed with error: Git could not be found at the expected path: '/home/ezm/applications/Arduino-PoC-0.0.1-06ef598-linux/resources/app/node_modules/dugite-no-gpl/git/bin/git'. This
 might be a problem with how the application is packaged, so confirm this folder hasn't been removed when packaging. Error: Git could not be found at the expected path: '/home/ezm/applications/Arduino-PoC-0.0.1-
06ef598-linux/resources/app/node_modules/dugite-no-gpl/git/bin/git'. This might be a problem with how the application is packaged, so confirm this folder hasn't been removed when packaging.                      
    at /home/ezm/applications/Arduino-PoC-0.0.1-06ef598-linux/resources/app/node_modules/dugite-no-gpl/build/lib/git-process.js:87:39                                                                              
    at exithandler (child_process.js:306:5)                                                                                                                                                                        
    at ChildProcess.errorhandler (child_process.js:318:5)                                                                                                                                                          
    at ChildProcess.emit (events.js:182:13)                                                                                                                                                                        
    at Process.ChildProcess._handle.onexit (internal/child_process.js:238:12)                                                                                                                                      
    at onErrorNT (internal/child_process.js:407:16)                                                                                                                                                                
    at process._tickCallback (internal/process/next_tick.js:63:19)

[LinyeNinja]

The same happens to me, board and library managers don't show anything and codes output the error ""Arduino.h" not found". (Using a Windows 10 machine)

[cd643]

I have also this problem and I get the same error as @moghaddam (I am using xubuntu 18.04 LTS). in the folder Arduino-PoC-0.0.1-06ef598-linux/resources/app/node_modules/dugite-no-gpl/ must be a folder named git, but it isn't

[rbmontes]

"An unexpected error occurred when locating the Git executable."

i fixed the problem by installing the GIT application https://git-scm.com/download/win

[cd643]

Nice, it works!

[SB-68846]

Installing Git solved the issue for me to (Win10).

The error message was not very clear to me, something like "Error: Could not locate Git executable" would have pointed me in the right direction right away.

[rcsa7]

"An unexpected error occurred when locating the Git executable."

i fixed the problem by installing the GIT application https://git-scm.com/download/win

[kittaakos]

We generalized the Git exec lookup in find-git-exec.

Please reopen if required.