Detected non-PlatformIO monitor_baud option

[universam1]

What kind of issue is this?

• [x ] PlatformIO Core. If you’ve found a bug, please provide an information below.

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Configuration

Operating system: W10 x64

PlatformIO Version (platformio --version):
3.4.0

Description of problem

monitor_baud is not working, I also get a warning.

Steps to Reproduce

ESP8266 Arduino, also with staging version

try this platformio.ini

[platformio]
env_default = main
lib_dir = asd\lib
src_dir = asd\src

[env:main]
platform = espressif8266
board = d1_mini
framework = arduino
monitor_baud = 115200
upload_speed = 921600
lib_deps = ArduinoJson, ESPAsyncTCP, ESPAsyncWebServer

Actual Results

Detected non-PlatformIO monitor_baud option in [env:main] section

[ivankravets]

It should be fixed before. Could you re-test with http://docs.platformio.org/en/latest/installation.html#development-version ?