B4R Question fatal error: LiquidCrystal.h: No such file or directory

This bugs for more than an hour now and I cannot figure out what is wrong.

I have got this message from the compiler:

Compiling (LOLIN(WEMOS) D1 R2 & mini) Error
In file included from C:\B4X\MyCode\B4R\MyCode\TestApps\LCDPlayground\Objects\src\src.ino:1:
C:\B4X\MyCode\B4R\MyCode\TestApps\LCDPlayground\Objects\src\B4RDefines.h:22:10: fatal error: LiquidCrystal.h: No such file or directory
22 | #include <LiquidCrystal.h>
| ^~~~~~~~~~~~~~~~~
compilation terminated.
Error during build: exit status 1

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This is an old trial project developed in an other computer with a previous version of B4R and a previous version of Arduino IDE (1.8.18). The same configuration was valid in my current computer.

I thought ok, since I have installed the new version of Arduino (2+) and the new version of B4R maybe in the new Arduino version it is not installed the LiquidCrystal library. I went to the Arduino IDE and installed the LiquidCrystal library. I have got the same error. Also loading in the Arduino IDE the .ino file and compiling I get the same error. See here (LiquidCrystal by Arduino is installed error persists). Am I missing something here? Does it look in an other directory?