PlatformIO CLI 3.0: Public Alpha 1

Please report this issue here Issues · platformio/platformio-core · GitHub
This is a bug. It looks like some library.json manifest of the installed is broken.

Thanks!

It’s fixed in PlatformIO 3.0.0a8. Please pio upgrade.

What do you mean? I’ve just tested project with a lot of dependencies and it works very quick next time when I build it:

lib_deps =
  TFT_ST7735
  OneWire
  Adafruit DHT Unified
  DallasTemperature
  ArduinoJson
  me-no-dev/ESPAsyncTCP
  me-no-dev/ESPAsyncWebServer
  marvinroger/async-mqtt-client