Installing the package from the Arduino Boards Manager generates index errors

[Andy2No]

I was trying to install the package for XLR8 boards, following the instructions given. I'm using Arduino 1.8.19.

After adding the URL to preferences, then searching the Boards manager for Alorium, I tried to install the XLR8 boards package, which resulted in the following errors:

Index error: could not find referenced tool name=xtensa-esp32-elf-gcc version=1.22.0-80-g6c4433a-5.2.0 packager=esp32
Index error: could not find referenced tool name=esptool_py version=2.6.1 packager=esp32
Index error: could not find referenced tool name=xtensa-esp32-elf-gcc version=1.22.0-80-g6c4433a-5.2.0 packager=esp32
Index error: could not find referenced tool name=esptool_py version=2.6.1 packager=esp32
Index error: could not find referenced tool name=xtensa-esp32-elf-gcc version=1.22.0-80-g6c4433a-5.2.0 packager=esp32
Index error: could not find referenced tool name=esptool_py version=2.6.1 packager=esp32
Index error: could not find referenced tool name=xtensa-esp32-elf-gcc version=1.22.0-80-g6c4433a-5.2.0 packager=esp32
Index error: could not find referenced tool name=esptool_py version=2.6.1 packager=esp32
Index error: could not find referenced tool name=xtensa-esp32-elf-gcc version=1.22.0-80-g6c4433a-5.2.0 packager=esp32
Index error: could not find referenced tool name=esptool_py version=2.6.1 packager=esp32
Index error: could not find referenced tool name=xtensa-esp32-elf-gcc version=1.22.0-80-g6c4433a-5.2.0 packager=esp32
Index error: could not find referenced tool name=esptool_py version=2.6.1 packager=esp32

Possibly this relates to the outdated dependency in issue #2