compilation error and incorrect manual

Hello,
I’m now trying to update firmware based on http://espcopter.com/2017/06/14/uploading-code/ post.
I have found some issues in documentation:

1. Sentence “After downloading, remove the zip file twice and put the file (ESPcopter ”(Files> Arduino> Library) into the file. In the Examples section, you will see the sample codes of the ESPcopter.” hould refer to Program files not to Files. There is typo.
2. Screenshot in section “6-) Update Main Software” is wrong. Now we have EspCopter->espcopter-> Espcopter_MainCode. Screenshot refers most likely to old version.

 
And second issue is that I’m not able to compile latest code. I opened ESPcopter_MainCode and tried to compile it. But I’m getting compilation error:
In file included from C:\Program Files (x86)\Arduino\libraries\espcopter\src/espcopter.h:7,
from C:\Program Files (x86)\Arduino\libraries\espcopter\examples\Espcopter\ESPcopter_MainCode\ESPcopter_MainCode.ino:8:
C:\Program Files (x86)\Arduino\libraries\espcopter\src/RemoteXY_Control.h:11:10: fatal error: RemoteXY.h: No such file or directory
11 | #include <RemoteXY.h>
| ^~~~~~~~~~~~
compilation terminated.
exit status 1
Error compiling for board NodeMCU 1.0 (ESP-12E Module).
 
Any idea how to fix compilation?
 
Best regards,
     Michal