我的Laravel应用程序抛出下一个错误：
(1/1) Error
Class name must be a valid object or a string
in HasRelationships.php line 656
我必须说，目前该项目位于共享主机中，但这是唯一根本无法使用的部分。这是HTML文件：
@extends('layouts.app')
@section('content')
<div class="container">
<div class="row justify-content-center">
<div class="col-md-10">
<div class="card">
<div class="card-header text-uppercase text-center"><b>Dashboard administrativo</b></div>
<div class="card-body">
<div class="card mb-3">
<div class="card-header">
<button type="button" class="btn btn-sm btn-primary text-uppercase" style="cursor:default;">Filtrar por</button>
<a class="btn btn-sm btn-secondary text-uppercase" role="button" href="/admin/dashboard/?gender=true">Hombre</a>
<a class="btn btn-sm btn-secondary text-uppercase" role="button" href="/admin/dashboard/?gender=false">Mujer</a>
<button type="button" class="btn btn-sm btn-primary text-uppercase" style="cursor:default;">Ordenar de manera</button>
<a class="btn btn-sm btn-secondary text-uppercase" role="button" href="{{ route('admin.dashboard', ['gender' => request('gender'), 'sort' => 'desc']) }}">Ascendente</a>
<a class="btn btn-sm btn-secondary text-uppercase" role="button" href="{{ route('admin.dashboard', ['gender' => request('gender'), 'sort' => 'asc']) }}">Descendente</a>
<a class="btn btn-sm btn-success text-uppercase" role="button" href="{{ route('admin.dashboard') }}">Reiniciar</a>
</div>
</div>
<div class="card">
<div class="card-header text-uppercase text-center">Usuarios registrados en el sistema</div>
<div class="card-body">
<table class="table table-bordered">
<thead>
<tr>
<th class="text-center">#</th>
<th>Nombre</th>
<th>Correo</th>
<th>Opciones</th>
</tr>
</thead>
<tbody>
@foreach ($users as $user)
<tr>
<td class="text-center">{{ $user->id }}</td>
<td>{{ $user->name }}</td>
<td>{{ $user->email }}</td>
<td>
<div class="btn-group fullwidth" role="group">
<a href="{{ route('user.show', $user->id) }}" class="btn btn-primary" role="button">Ver</a>
<a href="{{ route('user.edit', $user->id) }}" class="btn btn-success" role="button">Editar</a>
</div>
</td>
</tr>
@endforeach
</tbody>
</table>
{{ $users->links() }}
</div>
</div>
</div>
</div>
</div>
</div>
</div>
@endsection
这是我的控制器：
<?php
namespace App\Http\Controllers;
use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use Auth;
use App\Role;
use App\Permission;
use App\User;
use App\Share;
class AdminController extends Controller
{
public function dashboard()
{
$users = new User();
$queries = [];
$columns = [
'gender',
];
foreach ($columns as $column) {
if(request()->has($column)) {
$users = $users->where($column, request($column));
$queries[$column] = request($column);
} // if
} // foreach
if(request()->has('sort')) {
$users = $users->orderBy('name', request('sort'));
$queries['sort'] = request('sort');
} // if
$users = $users->paginate(10)->appends($queries);
return view('admin.dashboard', compact('users'));
} // dashboard
}
为什么在我的机器上开发时我的代码可以完美运行，而在托管时却不能正常运行？我当时在网上寻找解决方案，但是我得到的所有内容都与Entrust相关，而我根本没有使用过。有想法吗？
编辑：App\User
<?php
namespace App;
use Illuminate\Notifications\Notifiable;
use Illuminate\Foundation\Auth\User as Authenticatable;
use Spatie\Permission\Traits\HasRoles;
class User extends Authenticatable
{
use Notifiable, HasRoles;
/**
* The attributes that are mass assignable.
*
* @var array
*/
protected $fillable = [
'name', 'email', 'password', 'gender', 'identification', 'phone', 'country', 'city', 'provider', 'provider_id', 'birthday', 'referred_by', 'affiliate_id',
];
/**
* The attributes that should be hidden for arrays.
*
* @var array
*/
protected $hidden = [
'password', 'remember_token',
];
public function shares()
{
return $this->hasMany('App\Share');
}
public function storeProvider()
{
return $this->hasOne('App\Provider');
}
public function messages()
{
return $this->hasMany('App\Message');
}
}
这是整个错误：
(1/1) Error
Class name must be a valid object or a string
in HasRelationships.php line 656
at Model->newRelatedInstance(null)in HasRelationships.php line 479
at Model->morphToMany(null, 'model', null, null, 'role_id')in HasRoles.php line 47
at User->roles()in HasAttributes.php line 411
at Model->getRelationshipFromMethod('roles')in HasAttributes.php line 397
at Model->getRelationValue('roles')in HasAttributes.php line 327
at Model->getAttribute('roles')in Model.php line 1475
at Model->__get('roles')in HasRoles.php line 158
at User->hasRole('administrador')in HasRoles.php line 167
at User->hasRole(array('administrador'))in HasRoles.php line 187
at User->hasAnyRole(array('administrador'))in RoleMiddleware.php line 21
at RoleMiddleware->handle(object(Request), object(Closure), 'administrador')in Pipeline.php line 151
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php line 53
at Pipeline->Illuminate\Routing\{closure}(object(Request))in CheckInformation.php line 36
at CheckInformation->handle(object(Request), object(Closure))in Pipeline.php line 151
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php line 53
at Pipeline->Illuminate\Routing\{closure}(object(Request))in SubstituteBindings.php line 41
at SubstituteBindings->handle(object(Request), object(Closure))in Pipeline.php line 151
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php line 53
at Pipeline->Illuminate\Routing\{closure}(object(Request))in Authenticate.php line 43
at Authenticate->handle(object(Request), object(Closure))in Pipeline.php line 151
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php line 53
at Pipeline->Illuminate\Routing\{closure}(object(Request))in VerifyCsrfToken.php line 68
at VerifyCsrfToken->handle(object(Request), object(Closure))in Pipeline.php line 151
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php line 53
at Pipeline->Illuminate\Routing\{closure}(object(Request))in ShareErrorsFromSession.php line 49
at ShareErrorsFromSession->handle(object(Request), object(Closure))in Pipeline.php line 151
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php line 53
at Pipeline->Illuminate\Routing\{closure}(object(Request))in StartSession.php line 63
at StartSession->handle(object(Request), object(Closure))in Pipeline.php line 151
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php line 53
at Pipeline->Illuminate\Routing\{closure}(object(Request))in AddQueuedCookiesToResponse.php line 37
at AddQueuedCookiesToResponse->handle(object(Request), object(Closure))in Pipeline.php line 151
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php line 53
at Pipeline->Illuminate\Routing\{closure}(object(Request))in EncryptCookies.php line 66
at EncryptCookies->handle(object(Request), object(Closure))in Pipeline.php line 151
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php line 53
at Pipeline->Illuminate\Routing\{closure}(object(Request))in Pipeline.php line 104
at Pipeline->then(object(Closure))in Router.php line 667
at Router->runRouteWithinStack(object(Route), object(Request))in Router.php line 642
at Router->runRoute(object(Request), object(Route))in Router.php line 608
at Router->dispatchToRoute(object(Request))in Router.php line 597
at Router->dispatch(object(Request))in Kernel.php line 176
at Kernel->Illuminate\Foundation\Http\{closure}(object(Request))in Pipeline.php line 30
at Pipeline->Illuminate\Routing\{closure}(object(Request))in TrustProxies.php line 57
at TrustProxies->handle(object(Request), object(Closure))in Pipeline.php line 151
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php line 53
at Pipeline->Illuminate\Routing\{closure}(object(Request))in TransformsRequest.php line 31
at TransformsRequest->handle(object(Request), object(Closure))in Pipeline.php line 151
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php line 53
at Pipeline->Illuminate\Routing\{closure}(object(Request))in TransformsRequest.php line 31
at TransformsRequest->handle(object(Request), object(Closure))in Pipeline.php line 151
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php line 53
at Pipeline->Illuminate\Routing\{closure}(object(Request))in ValidatePostSize.php line 27
at ValidatePostSize->handle(object(Request), object(Closure))in Pipeline.php line 151
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php line 53
at Pipeline->Illuminate\Routing\{closure}(object(Request))in CheckForMaintenanceMode.php line 62
at CheckForMaintenanceMode->handle(object(Request), object(Closure))in Pipeline.php line 151
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php line 53
at Pipeline->Illuminate\Routing\{closure}(object(Request))in Pipeline.php line 104
at Pipeline->then(object(Closure))in Kernel.php line 151
at Kernel->sendRequestThroughRouter(object(Request))in Kernel.php line 116
at Kernel->handle(object(Request))in index.php line 55
答案 0 :(得分：0)
似乎您正在使用Spatie / Laravel权限，并且如果您的应用程序在开发服务器上运行，我想您的实时服务器中的php版本低于此软件包要求的7.0。
您应该使用phpinfo（）检查工作的php版本；在文件上并将您的浏览器指向该文件，这将显示您的网络服务器使用的是哪个php版本。 例如：您可以写下具有以下内容的文件info.php
<?php
phpinfo();
希望这会有所帮助。
答案 1 :(得分：0)
如@erubiel和@ farid-silva所述，您可能需要在生产时使用PHP版本。
但是，最直接的问题是Spatie\Permission\Traits\HasRoles::roles用以下方式调用Illuminate\Database\Eloquent\Concerns\HasRelationships::morphToMany：
related table和foreignKeyPivot 全部设置为null。
如果您查看code，这些值来自Laravel配置，即：
permission.models.role permission.table_names.model_has_roles和permission.column_names.model_morph_key 因此，值得检查一下您的配置（即permission值集），以检查这些值是否在生产中正确定义。