MissingPluginException(No implementation found for method custom on channel miguelruivo.flutter.plugins.filepicker

[WCCSFlutterApps]

Describe the bug
file_picker: ^10.3.3

Platform

• Android[ android {
  namespace = "com.---------"
  compileSdk 36
  ndkVersion = flutter.ndkVersion

  compileOptions {
  coreLibraryDesugaringEnabled true

   sourceCompatibility = JavaVersion.VERSION_17
   targetCompatibility = JavaVersion.VERSION_17
  

  }

  kotlinOptions {
  jvmTarget = '17'
  }
  }
  id "com.android.application" version '8.13.0' apply false
  id "org.jetbrains.kotlin.android" version "2.2.20" apply false
  distributionUrl=https://services.gradle.org/distributions/gradle-8.13-bin.zip

]

• iOS
• Web
• Desktop

Platform OS version
What version did it happen?

How are you picking?

Please, post the snippet here
    await getFile([
      'doc',
      'docx',
      'jpg',
      'pdf',
      'png',
      'jpeg',
      'xlsx',
      'xls',
      'pptx',
      'rar',
      'zip',
    ], context);
  getFile(List<String> list, BuildContext context) async {
    try {
      FilePickerResult? result = await FilePicker.platform.pickFiles(
        type: FileType.custom,
        allowedExtensions: list,
      );
      return result;
    } catch (e) {
      print("Error picking file: $e");
    }
  }

**Details to reproduce the issue**
Provide all the details to reproduce the issue.

**Error Log**
I/flutter ( 8305): [MethodChannelFilePicker] Unsupported operation. Method not found. The exception thrown was: MissingPluginException(No implementation found for method custom on channel miguelruivo.flutter.plugins.filepicker)
I/flutter ( 8305): Error picking file: MissingPluginException(No implementation found for method custom on channel miguelruivo.flutter.plugins.filepicker)

**Screenshots and/or video**
If applicable, add screenshots or video to help explain your problem.

**Flutter Version details**
~/Documents/practice_android_project/demo_project
flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 3.35.6, on macOS 15.5 24F74 darwin-arm64, locale en-IN)
[✓] Android toolchain - develop for Android devices (Android SDK version 36.1.0-rc1)
[✓] Xcode - develop for iOS and macOS (Xcode 16.0)
[✓] Chrome - develop for the web
[✓] Android Studio (version 2025.1)
[✓] VS Code (version 1.91.1)
[✓] Connected device (3 available)
    ! Error: Browsing on the local area network for iPhone. Ensure the device is unlocked and attached with a cable or associated with the same local area network
      as this Mac.
      The device must be opted into Developer Mode to connect wirelessly. (code -27)
[✓] Network resources

 

[Skynse]

Tearing my hair out with this same issue.

[Nas-D]

You just need to clean the project and rebuild it.

[Skynse]

You just need to clean the project and rebuild it.

Tried that, deleted the entire build folder, cleaned the gradle builds, even changed the Kotlin version used, tried numerous pro guard file variations. The issue lies in R8 when creating a release build, otherwise everything works in debug mode

[Nas-D]

Hm, that's so strange. Have you tried using version 10.3.0?