Hi,
I just did a fresh install of 3.0.218 twice and received this error message both times. Using php -S localhost:8000 as my server.
I am using php version 8.2.6 on ubuntu.
Note, I did install 3.0.210 and it worked.
I was at the point of the install where I set an admin user, and tell it to delete the install files, I received this error message.
Hmm… Fatal Error: Uncaught Error: Call to a member function get() on null in wire/modules/Inputfield/InputfieldSelector/InputfieldSelector.module:625
#0 wire/modules/Inputfield/InputfieldSelector/InputfieldSelector.module (1819): InputfieldSelector->sessionSet()
#1 wire/core/Inputfield.php (435): InputfieldSelector->setAttribute()
#2 wire/modules/Inputfield/InputfieldSelector/InputfieldSelector.module (224): Inputfield->__construct()
#3 wire/core/Modules.php (700): InputfieldSelector->__construct()
#4 wire/core/Modules.php (1211): Modules->newModule()
#5 wire/core/Modules.php (1023): Modules->loadModule()
#6 wire/core/Modules.php (407): Modules->load()
#7 wire/core/ProcessWire.php (557): Modules->init()
#8 wire/core/ProcessWire.php (315): ProcessWire->load()
#9 index.php (52): ProcessWire->__construct()
#10 {main}
thrown (line 625 of wire/modules/Inputfield/InputfieldSelector/InputfieldSelector.module)
This error message was shown because: site is in debug mode. ($config->debug = true; => site/config.php). Error has been logged.