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src/Command/Serve.php:99:50: PossiblyNullArgument: Argument 1 of substr cannot be null, possibly null value provided (see https://psalm.dev/078)

src/ExitCode.php:35:18: MissingClassConstType: Class constant "Yiisoft\Yii\Console\ExitCode::OK" should have a declared type. (see https://psalm.dev/359)

src/ExitCode.php:40:18: MissingClassConstType: Class constant "Yiisoft\Yii\Console\ExitCode::UNSPECIFIED_ERROR" should have a declared type. (see https://psalm.dev/359)

src/ExitCode.php:46:18: MissingClassConstType: Class constant "Yiisoft\Yii\Console\ExitCode::USAGE" should have a declared type. (see https://psalm.dev/359)

src/ExitCode.php:52:18: MissingClassConstType: Class constant "Yiisoft\Yii\Console\ExitCode::DATAERR" should have a declared type. (see https://psalm.dev/359)

src/ExitCode.php:59:18: MissingClassConstType: Class constant "Yiisoft\Yii\Console\ExitCode::NOINPUT" should have a declared type. (see https://psalm.dev/359)

src/ExitCode.php:65:18: MissingClassConstType: Class constant "Yiisoft\Yii\Console\ExitCode::NOUSER" should have a declared type. (see https://psalm.dev/359)

src/ExitCode.php:71:18: MissingClassConstType: Class constant "Yiisoft\Yii\Console\ExitCode::NOHOST" should have a declared type. (see https://psalm.dev/359)

src/ExitCode.php:78:18: MissingClassConstType: Class constant "Yiisoft\Yii\Console\ExitCode::UNAVAILABLE" should have a declared type. (see https://psalm.dev/359)