One is trying to run Grakn from Arch Linux system. On ./grakn server start, one gets the following error message (along with the instruction to check grakn server status or log files, which do not reveal anything). Unsupported Java version [14] found. Grakn needs Java 1.8 in order to run. java –version gives the following: openjdk 14.0.2 2020-07-14 OpenJDK Runtime