Could not initialize project

[3shimi]

PIO Core Call Error: "The following files/directories have been created in C:\Users\Tony\Documents\PlatformIO\Projects\dotSync_receiver\r\ninclude - Put project header files here\r\nlib - Put project specific (private) libraries here\r\nsrc - Put project source files here\r\nplatformio.ini - Project Configuration File\r\nResolving airm2m_core_esp32c3 dependencies...\r\n\n\nUnknownBoard: Unknown board ID 'airm2m_core_esp32c3'"