build fails with register unknown symbol

[seankang92129]

Describe the bug
On the azure devops pipeline, the build fails -- whereas it did not incur this problem before.

Running: flutter build apk --flavor MyFlavor

Platform

• [ X] Android
• iOS
• Web
• Desktop

Platform OS version
Running on ubuntu build agent ubuntu-22.04

How are you picking?
on the android build

Details to reproduce the issue
Clean flutter build -- with cleared pub.dev cache

Error Log
/home/vsts/.pub-cache/hosted/pub.dev/file_picker-8.1.5/android/src/main/java/com/mr/flutter/plugin/filepicker/FilePickerPlugin.java:257: error: cannot find symbol
if (registrar != null) {
^
symbol: variable registrar
location: class FilePickerPlugin
/home/vsts/.pub-cache/hosted/pub.dev/file_picker-8.1.5/android/src/main/java/com/mr/flutter/plugin/filepicker/FilePickerPlugin.java:260: error: cannot find symbol
registrar.addActivityResultListener(this.delegate);
^
symbol: variable registrar
location: class FilePickerPlugin

Screenshots and/or video
na

Flutter Version details
3.24.3

Additional context
Add any other context about the problem here.

[dkati]

same here

[jaimecalderon19]

I did the same thing with a flutter clean and then a flutter pub get and it stopped working.

[metekaganmusaak]

Duplicated topic. Check #1643

[VimalNovelX]

same issue

[VimalNovelX]

FilePickerPlugin.java:257: error: cannot find symbol
if (registrar != null) {
^
symbol: variable registrar
location: class FilePickerPlugin
C:\Users\91963\AppData\Local\Pub\Cache\hosted\pub.dev\file_picker-8.1.5\android\src\main\java\com\mr\flutter\plugin\filepicker\FilePickerPlugin.java:260: error: cannot find symbol
registrar.addActivityResultListener(this.delegate);
^
symbol: variable registrar
location: class FilePickerPlugin

[waslost0]

I just set in pubspec.yaml

 file_picker: 8.1.2

[VimalNovelX]

Replace this line
if (registrar != null) {
// V1 embedding setup for activity listeners.
application.registerActivityLifecycleCallbacks(this.observer);
registrar.addActivityResultListener(this.delegate);
} else {
// V2 embedding setup for activity listeners.
activityBinding.addActivityResultListener(this.delegate);
this.lifecycle = FlutterLifecycleAdapter.getActivityLifecycle(activityBinding);
this.lifecycle.addObserver(this.observer);
}

with this code

if (activityBinding != null) {
// V2 embedding setup for activity listeners.
activityBinding.addActivityResultListener(this.delegate);
this.lifecycle = FlutterLifecycleAdapter.getActivityLifecycle(activityBinding);
if (this.lifecycle != null) {
this.lifecycle.addObserver(this.observer);
}
}
in C:\Users\91963\AppData\Local\Pub\Cache\hosted\pub.dev\file_picker-8.1.5\android\src\main\java\com\mr\flutter\plugin\filepicker/FilepickerPlugin

flutter clear
flutter pub get
Restart windows

this solved for me

[Cat-100]

Duplicated topic. Check #1643

metekaganmusaak is correct.

And according to waslost0;

I just set in pubspec.yaml

 file_picker: 8.1.2

This works. In the #1643 issue, they reverted to the closest downgrade; 8.1.4

That worked for me, even on flutter 3.27 and gradle of gradle-8.2.1-all.zip.
file_picker: 8.1.4

[sk92129]

I reverted to 8.1.4 since I have a daily pipeline build that worked the day before -- so I knew that it was very recent update from a dependency

[ChegzDev]

@miguelpruivo @sk92129 @waslost0 For latest Flutter version 3.27.0 . automatically overrider to file_picker: ^8.1.5
so version change is not possible for me. please give the update with fix this issue.

[JayMoliya33]

@miguelpruivo @sk92129 @waslost0 For latest Flutter version 3.27.0 . automatically overrider to file_picker: ^8.1.5 so version change is not possible for me. please give the update with fix this issue.

++ same issue for me
any luck?

[AliHaxxan2004]

Try file_picker: 8.1.4 without "^" it worked for me..

[ChegzDev]

@AliHaxxan2004 thanks bro. this is a new info for me. may be in latest version flutter include this feature.
if "^" symnol came then automatically take latest version of that package.
oops!. any way file_picker need to change code for fix this issue @miguelpruivo