Unable to cache built core, please tell esp32 maintainers to follow http://goo.gl/QdCUjo

[fabianoriccardi]

Hardware:

Board: Lolin D32
Core Installation/update date: c3ec91f
IDE name: Arduino IDE 1.8.7
Flash Frequency: 80Mhz
PSRAM enabled: no
Upload Speed: 912600
Computer OS: Windows 10

Description:

Arduino IDE gives me the following error/warning while compiling:

Unable to cache built core, please tell esp32 maintainers to follow http://goo.gl/QdCUjo

I'm using the last git version, but I've also tried with release 1.0.0, same issue.

[tedder]

Looks like esp8266 was patched in esp8266/Arduino@85e6809 , which came out of esp8266/Arduino#5169 , PR was esp8266/Arduino#5018 .