ESP8285 Arduino: linker fails to find move operators - Development Platforms - PlatformIO Community
linux - 'qNextPowerOfTwo' was not declared in this scope - Qt - Stack Overflow
TRY_LOCK was not declared in this scope WITH_LOCK was not declared in this scope - Firmware - Particle
peviousMillis' was not declared in this scope - IDE 1.x - Arduino Forum
error: 'malloc' was not declared in this scope · Issue #4 · JustinTulloss/zeromq.node · GitHub
EN' was not declared in the scope - Programming Questions - Arduino Forum
Why is that we should free variables only allocated malloc and calloc functions but not ones that are directly declared and assigned in C language? Is the saving mechanism different in these
Dynamic Memory Allocation in C using malloc(), calloc(), free() and realloc() - GeeksforGeeks
isConnected was not declared in this scope error - PlatformIO Community
Solved]-'not declared in this scope' when using strlen()-C++
Why is my malloc function not working properly in C? - Quora