升级Livewire至v3时遇「No morph map defined for model」错误求助

环境与操作背景 #

• 运行环境：Docker + Laravel 9.39.0 + PHP 8.1.3
• 操作目标：将Livewire从2.10版本升级至3.0版本

升级执行步骤 #

按照Livewire官方升级指引执行了以下命令：

sail composer require livewire/livewire "^3.0"

sail php artisan view:clear

sail php artisan livewire:upgrade

执行livewire:upgrade启动半自动代码审查流程时，全程选择「keep(1)」和「yes」，所有步骤无报错完成。之后手动完成了dispatch()方法的参数命名调整，升级流程结束。

问题现象 #

访问包含Livewire组件的视图时，例如使用以下代码：

@livewire('authors.bios', ['author' => $author])
该行代码在Livewire 2.10版本中可正常运行，但升级后抛出异常：
"No morph map defined for model [App\Models\Author]."

多方排查仍未找到问题原因，寻求帮助。

附：composer.json内容 #

{
"name": "laravel/laravel",
"type": "project",
"description": "The Laravel Framework.",
"keywords": ["framework", "laravel"],
"license": "MIT",
"require": {
    "php": "^8.1",
    "doctrine/dbal": "^3.5",
    "ezyang/htmlpurifier": "^4.16",
    "fideloper/proxy": "~4.4.1",
    "guzzlehttp/guzzle": "^7.2",
    "laravel/framework": "^9.2",
    "laravel/sanctum": "^2.14.1",
    "laravel/tinker": "^2.7",
    "laravel/ui": "^3.4",
    "livewire/livewire": "^3.0"
},
"require-dev": {
    "fakerphp/faker": "^1.9.1",
    "laravel/sail": "^1.0.1",
    "mockery/mockery": "^1.4.4",
    "nunomaduro/collision": "^6.1",
    "phpunit/phpunit": "^9.5.10",
    "spatie/laravel-ignition": "^1.0"
},
"autoload": {
    "psr-4": {
        "App\\": "app/",
        "Database\\Factories\\": "database/factories/",
        "Database\\Seeders\\": "database/seeders/"
    },
    "files": [
        "app/helpers.php"
    ]
},
"autoload-dev": {
    "psr-4": {
        "Tests\\": "tests/"
    }
},
"scripts": {
    "post-autoload-dump": [
        "Illuminate\\Foundation\\ComposerScripts::postAutoloadDump",
        "@php artisan package:discover --ansi"
    ],
    "post-update-cmd": [
        "@php artisan vendor:publish --tag=laravel-assets --ansi --force"
    ],
    "post-root-package-install": [
        "@php -r \"file_exists('.env') || copy('.env.example', '.env');\""
    ],
    "post-create-project-cmd": [
        "@php artisan key:generate --ansi"
    ]
},
"extra": {
    "laravel": {
        "dont-discover": []
    }
},
"config": {
    "optimize-autoloader": true,
    "preferred-install": "dist",
    "sort-packages": true
},
"minimum-stability": "dev",
"prefer-stable": true
}

内容的提问来源于stack exchange，提问作者Alberto Suárez