Support: Many To Many Relationship between fields

[Peterragheb]

I'm trying to use this package for many to many relationship
I have a Platform belongsToMany Project
and Project belongsTo many Platform

NovaBelongsToDepend::make('Project', 'project', Project::class),

NovaBelongsToDepend::make('Affected Platforms','affectedPlatforms',SupportedPlatform::class)
                ->optionsResolve(function ($project) {
                    return \App\SupportedPlatform::whereHas('projects', function ($q) use ($project) {
                        $q->where('project_id', $project->id);
                    })->get();
                })
            ->dependsOn('Project')
            ->rules('required'),

But I get Method Illuminate\Database\Eloquent\Collection::getKey does not exist.

What am I doing wrong?
Also is it possible to select multiple options?

[deepraj-sinha]

@Peterragheb did you got any solution?

[ArduanovDanil]

@orlyapps, hello! I have same issue. Is there any solution?

[ikramooe]

Having the same issue

[dan-lutd]

I also get the error