The job was canceled because "ubuntu-latest_8_1" failed.

src/Debug/Http/DebugHttpApplicationWrapper.php:18:26: UndefinedClass: Class, interface or enum named Yiisoft\Yii\Http\Application does not exist (see https://psalm.dev/019)

src/Debug/Provider/DebugApiProvider.php:34:13: UndefinedClass: Class, interface or enum named Yiisoft\Yii\Http\Application does not exist (see https://psalm.dev/019)

src/Debug/Provider/DebugApiProvider.php:34:83: UndefinedClass: Class, interface or enum named Yiisoft\Yii\Http\Application does not exist (see https://psalm.dev/019)

src/ServerSentEventsStream.php:10:13: MethodSignatureMismatch: Method Yiisoft\Yii\Debug\Api\ServerSentEventsStream::getSize with return type '' is different to return type 'int|null' of inherited method Psr\Http\Message\StreamInterface::getSize (see https://psalm.dev/042)

src/ServerSentEventsStream.php:10:13: MethodSignatureMismatch: Method Yiisoft\Yii\Debug\Api\ServerSentEventsStream::write with return type 'void' is different to return type 'int' of inherited method Psr\Http\Message\StreamInterface::write (see https://psalm.dev/042)