I am writing code in the platformio extension for vs code. A week ago there was a problem. When building the project, an error appeared in the header file BlynkParam.h that the atoll function was not declared. in BlynkParam.h there is a connection stdlib.h in which there is no declaration of this function, but in the directory / usr / incl, where the standard header files in stdlib.h are located, I found an atoll declaration. When building the project, BlynkParam.h includes stdlib.h which is located in /home/echo/.platformio/packages/toolchain-atmelavr/avr/include.