[SOLVED]fastboot wired errors

Problem:

When trying to flash a device using fastboot, i.e. via commands "fastboot -w flashall", get errrors like

"error: neither -p product specified nor ANDROID_PRODUCT_OUT set"

or

"error: error: could not load android-info.txt"

Solution:

First, you want to make sure the environment variable ANDROID_PRODUCT_OUT is properly set to the out/target/product/your_product/ directory

Second, double check if all images(boot.img, system.img, userdata.img, caches.img, recovery.img) are there in that directory and an text file "android-info.txt" exits.

If all images are generated and ANDROID_PRODUCT_OUT is set, then you might have to flash images one by one. It seems that the "flashall" command is problematic sometimes.

Commands:

fastboot flash boot boot.img

fastboot flash system system.img

fastboot flash userdata userdata.img

fastboot flash recovery recovery.img

...