ios – Duplicate plugin key: VideoThumbnailPlugin

I obtained this error Duplicate plugin key: VideoThumbnailPlugin once I run my app in Xcode I attempted a number of methods to repair it however nothing works for me.
Additionally I deleted each line that comprise thumbnail in ios/Podfile.lock however once I run pods set up the traces added routinely.

NOTE: I’ve deleted the video_thumbnail plugin early and it is nonetheless within the venture in someplace.

under the error message:

Podfile code:

platform :ios, '13.0'

ENV['COCOAPODS_DISABLE_STATS'] = 'true'

pod 'GoogleUtilities'

venture 'Runner', {
  'Debug' => :debug,
  'Profile' => :launch,
  'Launch' => :launch,
}

def flutter_root
  generated_xcode_build_settings_path = File.expand_path(File.be part of('..', 'Flutter', 'Generated.xcconfig'), __FILE__)
  except File.exist?(generated_xcode_build_settings_path)
    elevate "#{generated_xcode_build_settings_path} should exist. In the event you're operating pod set up manually, make sure that flutter pub get is executed first"
  finish

  File.foreach(generated_xcode_build_settings_path) do |line|
    matches = line.match(/FLUTTER_ROOT=(.*)/)
    return matches[1].strip if matches
  finish
  elevate "FLUTTER_ROOT not present in #{generated_xcode_build_settings_path}. Strive deleting Generated.xcconfig, then run flutter pub get"
finish

require File.expand_path(File.be part of('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)

flutter_ios_podfile_setup

goal 'Runner' do
  use_frameworks!
  use_modular_headers!
  pod 'FirebaseFirestore', :git => 'https://github.com/invertase/firestore-ios-sdk-frameworks.git', :tag => '11.8.0'
  flutter_install_all_ios_pods File.dirname(File.realpath(__FILE__))
finish

set up! 'cocoapods', :disable_input_output_paths => true # Uncomment ****

post_install do |installer|
  installer.pods_project.targets.every do |goal|
    flutter_additional_ios_build_settings(goal)
  finish
finish

AppDelegate.swift code:

import UIKit
import Flutter
import FirebaseCore

@most important
@objc class AppDelegate: FlutterAppDelegate {
  override func utility(
    _ utility: UIApplication,
    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
  ) -> Bool {
      FirebaseApp.configure()
      GeneratedPluginRegistrant.register(with: self)
      return tremendous.utility(utility, didFinishLaunchingWithOptions: launchOptions)
  }
}

What I keep in mind to did:

• Deleted Podfile.lock and Pods recordsdata
• pods replace, set up
• flutter clear
• flutter pub get
• flutter improve
• flutter pub improve
• flutter construct ios
• Clear construct folder (Xcode)
• Delete derived information

and so much so much so much I spend days to repair it.