Solved: Detected unknown package

Solution

1. Please check your Internet connection, firewall, and antivirus tools which can block PlatformIO.
2. Try to open PlatformIO Core (CLI) via VSCode > Left Side Bar > PlatformIO > Misc and to install required dev/platform manually:

pio platform install xxxNameOfDevPlatform

Or, start building project with pio run.

IF YOU CAN NOT RESOLVE THIS ISSUE, please leave a comment below.

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PIO Core Call Error: “The current working directory C:\Users\Briam\Documents\HI will be used for the project.\r\n\r\nThe next files/directories have been created in C:\Users\Briam\Documents\HI\r\ninclude - Put project header files here\r\nlib - Put here project specific (private) libraries\r\nsrc - Put project source files here\r\nplatformio.ini - Project Configuration File\r\n\n\nError: Detected unknown package ‘tool-scons’”

[ivankravets]

https://www.python.org/downloads/release/python-381/

macOS users

    For Python 3.8.0, we provide one installer: 64-bit-only that works on macOS 10.9 (Mavericks) and later systems.
    Please read the "Important Information" displayed during installation for information about SSL/TLS certificate validation and the running the "Install Certificates.command".

[ivankravets]

Please install the latest Python from official web site. Remove ~/.platformio/penv folder and restart VSCode.

Please note that you need also to install SSL certificates. The installation script should be in mounted Python image.