I suppose you are a Windows user? Windows system is not a case-sensitive so when your source file contains the line #include PlatformIO decides to use library 44 because it has the similar file Time.h. As a workaround, you can just rename file Time.h to _Time.h in library directory c:\Users\your_user.platformio\lib\Time_ID44 and your project should compile without errors.
Time.h is deprecated anyhow (only contains a compile time error message and nothing more), so please just get rid of it finally.
jamesmyatt
commented
2 years ago
I guess this thread has the explanation: https://community.platformio.org/t/build-error-if-time-library-is-installed/450
Time.h is deprecated anyhow (only contains a compile time error message and nothing more), so please just get rid of it finally.