hi i have tried many ways to try and fix these few errors and i have no idea what else to do can anyone help me with this please. i am currently using unity version 2020.1.9F1
Check the path with sdkmanager.bat, it says the path doesn’t exist, maybe somebody delete it? If so, reinstall Unity + Android + SDK & NDK via Unity HUB
In addition to what Tomas is suggesting, there were some improvements in 2020.1.10f1 regarding this, so you might want to try that version as well.