thanks. that was truly helpful.
just in case, im using 5.2 and 5.3 and you can go down to sdk 29 (thank god, since htc vive has that as maximum).
i use ndk : android-29 and sdk “matchndk”
also ive been using ndk 25.1.89xxxx for a long time. i think that’ s the one listed in the android setup script so i left that one.
i found the jdk from here are easy to install, just unzip. wonderful for testing. Archived OpenJDK GA Releases
though the ideal is the sdk in the android/jre folder
i ran into this error when compiling in case someone else needs it
htc had some java libraries compiled for v 55 and but java in the android folder is 52.
i found with the previous post and this link that i could use version 11 How to check Java version used to compile a class | dev cases
and that solved my issueS. (god i wish android were simpler).