INFO Reading configuration /config/esphome/kc868-uair.yaml...
INFO Generating C++ source...
INFO Compiling app...
Processing kc868-uair (board: esp32dev; framework: arduino; platform: platformio/espressif32 @ 3.5.0)
--------------------------------------------------------------------------------
HARDWARE: ESP32 240MHz, 320KB RAM, 4MB Flash
LDF: Library Dependency Finder -> https://bit.ly/configure-pio-ldf
Dependency Graph
|-- <AsyncTCP-esphome> 1.2.2
|-- <WiFi> 1.0
|-- <FS> 1.0
|-- <Update> 1.0
|-- <ESPAsyncWebServer-esphome> 2.1.0
|   |-- <AsyncTCP-esphome> 1.2.2
|-- <DNSServer> 1.1.0
|-- <ESPmDNS> 1.0
|-- <NeoPixelBus> 2.6.9
|   |-- <SPI> 1.0
RAM:   [=         ]  12.9% (used 42220 bytes from 327680 bytes)
Flash: [=====     ]  53.9% (used 989418 bytes from 1835008 bytes)
========================= [SUCCESS] Took 8.94 seconds =========================
INFO Successfully compiled program.
INFO Resolving IP address of kc868-uair.local
INFO  -> 10.13.250.133
INFO Uploading /data/kc868-uair/.pioenvs/kc868-uair/firmware.bin (989520 bytes)
Uploading: [===================================                         ] 59% 
ERROR Error sending data: [Errno 104] Connection reset by peer