Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires simplesamlphp/xml-security ^1.7 -> satisfiable by simplesamlphp/xml-security[v1.7.0]. - simplesamlphp/xml-security v1.7.0 requires php ^8.1 -> your php version (8.0.30) does not satisfy that requirement.

Process completed with exit code 2.

src/Controller/MonitorController.php:156:16: UndefinedMethod: Method Symfony\Component\HttpFoundation\JsonResponse::create does not exist (see https://psalm.dev/022)

src/TestCase/AuthSource/Ldap/Bind.php:37:44: PossiblyNullReference: Cannot call method getString on possibly null value (see https://psalm.dev/083)

src/TestCase/AuthSource/Ldap/Bind.php:38:44: PossiblyNullReference: Cannot call method getString on possibly null value (see https://psalm.dev/083)

src/TestCase/AuthSource/Ldap/Configuration.php:20:5: UndefinedDocblockClass: Docblock-defined class, interface or enum named SimpleSAML\Module\ConnectorInterface does not exist (see https://psalm.dev/200)

src/TestCase/AuthSource/Ldap/Configuration.php:20:13: UndefinedDocblockClass: Docblock-defined class, interface or enum named SimpleSAML\Module\ConnectorInterface does not exist (see https://psalm.dev/200)

src/TestCase/AuthSource/Ldap/Configuration.php:20:13: MismatchingDocblockPropertyType: Parameter SimpleSAML\Module\monitor\TestCase\AuthSource\Ldap\Configuration::$connection has wrong type 'SimpleSAML\Module\ConnectorInterface|null', should be 'SimpleSAML\Module\ldap\ConnectorInterface|null' (see https://psalm.dev/264)

src/TestCase/AuthSource/Ldap/Configuration.php:49:44: PossiblyNullReference: Cannot call method getString on possibly null value (see https://psalm.dev/083)

src/TestCase/AuthSource/Ldap/Configuration.php:50:46: PossiblyNullReference: Cannot call method getOptionalString on possibly null value (see https://psalm.dev/083)

src/TestCase/AuthSource/Ldap/Configuration.php:51:43: PossiblyNullReference: Cannot call method getOptionalInteger on possibly null value (see https://psalm.dev/083)

src/TestCase/AuthSource/Ldap/Configuration.php:52:43: PossiblyNullReference: Cannot call method getOptionalInteger on possibly null value (see https://psalm.dev/083)

hooks/hook_frontpage.php:18:5: MixedArrayAssignment: Cannot access array value on mixed variable $links['config'] (see https://psalm.dev/117)

src/Controller/MonitorController.php:56:19: PropertyNotSetInConstructor: Property SimpleSAML\Module\monitor\Controller\MonitorController::$state is not defined in constructor of SimpleSAML\Module\monitor\Controller\MonitorController or in any methods called in the constructor (see https://psalm.dev/074)

src/Controller/MonitorController.php:152:16: MixedInferredReturnType: Could not verify return type 'Symfony\Component\HttpFoundation\JsonResponse' for SimpleSAML\Module\monitor\Controller\MonitorController::processJson (see https://psalm.dev/047)

src/Controller/MonitorController.php:156:16: MixedReturnStatement: Could not infer a return type (see https://psalm.dev/138)

src/Controller/MonitorController.php:157:27: MixedArrayAccess: Cannot access array value on mixed variable $this->healthInfo[$this->state] (see https://psalm.dev/051)

src/Monitor.php:72:16: MixedInferredReturnType: Could not verify return type 'int' for SimpleSAML\Module\monitor\Monitor::getState (see https://psalm.dev/047)

src/Monitor.php:77:16: MixedReturnStatement: Possibly-mixed return value (see https://psalm.dev/138)

src/Monitor.php:77:16: MixedReturnStatement: Could not infer a return type (see https://psalm.dev/138)

src/TestCase/AuthSource/Ldap/Bind.php:34:9: MixedAssignment: Unable to determine the type that $this->connection is being assigned to (see https://psalm.dev/032)

src/TestCase/AuthSource/Ldap/Bind.php:35:9: MixedAssignment: Unable to determine the type that $authSourceData is being assigned to (see https://psalm.dev/032)

tests/src/TestCase/AuthSource/Ldap/LdapBindTest.php:28:78: DeprecatedMethod: The method PHPUnit\Framework\TestCase::returnValue has been marked as deprecated (see https://psalm.dev/001)

tests/src/TestCase/AuthSource/Ldap/LdapSearchTest.php:35:80: DeprecatedMethod: The method PHPUnit\Framework\TestCase::returnValue has been marked as deprecated (see https://psalm.dev/001)

tests/src/TestCase/AuthSource/NegotiateTest.php:51:96: DeprecatedMethod: The method PHPUnit\Framework\TestCase::returnValue has been marked as deprecated (see https://psalm.dev/001)

tests/src/TestCase/AuthSource/NegotiateTest.php:53:20: DeprecatedMethod: The method PHPUnit\Framework\TestCase::returnValue has been marked as deprecated (see https://psalm.dev/001)

tests/src/TestCase/AuthSource/NegotiateTest.php:69:96: DeprecatedMethod: The method PHPUnit\Framework\TestCase::returnValue has been marked as deprecated (see https://psalm.dev/001)