Fix travis build for esp32

Jay Logue · gerickson · commit ca956fb55768 · 2018-10-10T10:39:28.000-07:00
diff --git a/.travis/prepare_esp32.sh b/.travis/prepare_esp32.sh
@@ -31,6 +31,7 @@ set -x
 
 # Install dependent packages needed by the ESP32 development environment.
 #
+sudo apt-get update
 sudo apt-get -y install libncurses-dev flex bison gperf
 
 # Install ESP32 toolchain for linux

Original file line number	Diff line number	Diff line change
`@@ -31,6 +31,7 @@ set -x`
`31`	`31`
`32`	`32`	`# Install dependent packages needed by the ESP32 development environment.`
`33`	`33`	`#`
	`34`	`+sudo apt-get update`
`34`	`35`	`sudo apt-get -y install libncurses-dev flex bison gperf`
`35`	`36`
`36`	`37`	`# Install ESP32 toolchain for linux`