Your requirements could not be resolved to an installable set of packages. Problem 1 - simplesamlphp/simplesamlphp dev-master requires php ^8.1 -> your php version (8.0.30) does not satisfy that requirement. - simplesamlphp/simplesamlphp 3.0.x-dev is an alias of simplesamlphp/simplesamlphp dev-master and thus requires it to be installed too. - Root composer.json requires simplesamlphp/simplesamlphp ^3@dev -> satisfiable by simplesamlphp/simplesamlphp[3.0.x-dev (alias of dev-master)].

Process completed with exit code 2.

src/Controller/OTP.php:102:46: ArgumentTypeCoercion: Argument 1 of SimpleSAML\Auth\State::loadState expects string, but parent type scalar provided (see https://psalm.dev/193)

src/Controller/OTP.php:130:46: ArgumentTypeCoercion: Argument 1 of SimpleSAML\Auth\State::loadState expects string, but parent type scalar provided (see https://psalm.dev/193)

src/Controller/OTP.php:194:46: ArgumentTypeCoercion: Argument 1 of SimpleSAML\Auth\State::loadState expects string, but parent type scalar provided (see https://psalm.dev/193)

src/Controller/OTP.php:227:46: ArgumentTypeCoercion: Argument 1 of SimpleSAML\Auth\State::loadState expects string, but parent type scalar provided (see https://psalm.dev/193)

Process completed with exit code 2.

src/Utils/PhoneNumber.php:43:23: PossiblyNullOperand: Cannot concatenate with a possibly null int|null (see https://psalm.dev/080)