No error when referred parameter is missing (using extends)

[TD-er]

PIO version:

• Home 3.1.0-beta.1
• Core 4.1.1b1

I tried to get my platformio.ini file a lot more structured by using extends.

Just a section of my ini file:

[common]
lib_ldf_mode              = chain
lib_archive               = false
framework                 = arduino
upload_speed              = 115200
monitor_speed             = 115200
;targets                   = size, checkprogsize
targets                   =

[regular_platform]
build_unflags             =
build_flags               = ${core_2_6_1.build_flags} ${common.build_flags}
platform                  = ${core_2_6_1.platform}

[hard_esp82xx]
platform                  = ${regular_platform.platform}
build_flags               = ${regular_platform.build_flags}
                            -DBUILD_NO_DEBUG
                            -DPLUGIN_BUILD_CUSTOM

As you can see, the ${regular_platform.build_flags} refers ${common.build_flags}, which doesn't exist.
The result is no error, but it has the build_flags empty.

Part of the verbose output:

Processing hard_SONOFF_POW_4M1M (extends: esp8266_4M1M, hard_esp82xx; platform: https://github.com/Jason2866/platform-espressif8266.git#core_2_6_1; build_flags: ; board: esp12e; board_build.flash_mode: dio; board_upload.maximum_size: 1044464; board_build.f_cpu: 80000000L; build_unflags: -DDEBUG_ESP_PORT; lib_deps: https://github.com/TD-er/ESPEasySerial.git; lib_ignore: ESP32_ping, ESP32WebServer, IRremoteESP8266, HeatpumpIR, SD(esp8266), SDFS; lib_ldf_mode: chain; lib_archive: False; framework: arduino; upload_speed: 115200; monitor_speed: 115200; targets: )

[ivankravets]

Thanks! Please re-test with pio upgrade --dev.

[TD-er]

I forgot to reply (and test), but now I have tested it (by accident ;) ) and it works :)

Thanks.