title: Flutter pub get failed with intl
body: <p>My app was working yesterday but today, I'm getting the error below when I try to run pub get, so where am I doing wrong, tried to add intl: 0.17.0-nullsafety.2 but it didn't work, thanks in advance.</p>
  <p><strong>Edit</strong></p>
  <p>changing intl: 0.17.0-nullsafety to intl: ^0.16.1` , does not change anything</p>
  <p><strong>Error</strong></p>
  <pre><code>    flutter pub get
      Running &quot;flutter pub get&quot; in koygitsin...                       
      Because every version of date_time_picker depends on intl ^0.16.1 and temp_name depends on intl 0.17.0-nullsafety.2, date_time_picker is forbidden.
      
      So, because temp_name depends on date_time_picker ^1.0.1, version solving failed.
      pub get failed (1; So, because temp_name depends on date_time_picker ^1.0.1, version solving failed.)
  
  exit code 1
  </code></pre>
  <p><strong>pubspec yaml</strong></p>
  <pre><code>dependencies:
    flutter:
      sdk: flutter
      
  
  
    # The following adds the Cupertino Icons font to your application.
    # Use with the CupertinoIcons class for iOS style icons.
    cupertino_icons: ^1.0.0
    font_awesome_flutter: ^8.10.0
    carousel_slider: ^2.3.1
    firebase_ml_vision: ^0.9.10
    firebase_core: ^0.5.1
    firebase_auth: ^0.18.3
    firebase_messaging: ^7.0.3
    firebase_database: ^4.3.0
    firebase_storage: ^5.0.1
    image_picker: ^0.6.7+12
    cloud_firestore: ^0.14.3
    item_selector: ^0.1.1
    flutter_staggered_animations: ^0.1.2
    modal_progress_hud: ^0.1.3
    convex_bottom_bar: ^2.6.0
   
    google_fonts: ^1.1.1
    animations: ^1.1.2
    path_provider: ^1.6.24
    auto_size_text_field: ^0.1.7
    intl: 0.17.0-nullsafety.2
    flutter_bloc: ^6.1.1
    flutter_picker: ^1.1.5
    date_time_picker: ^1.0.1
    sliding_up_panel: ^1.0.2
    flutter_onboard: ^0.1.0
    image_crop: ^0.3.4
    audioplayer: ^0.8.1
    flutter_countdown_timer: ^1.6.0
    shared_preferences: 0.5.12+4
    argon_buttons_flutter: ^1.0.6
    cached_network_image: ^2.4.1
    material_floating_search_bar: ^0.2.4
    flutter_neumorphic: ^3.0.3
  </code></pre>