运行项目时构建失败

Question

I just upgraded my Android Studio and flutter SDK. When I try running my flutter project I keep getting this error below. I am using flutter_paystack: ^1.0.5+1 package.

Parameter format not correct -
e: C:\src\flutter\flutter\.pub-cache\hosted\pub.dartlang.org\flutter_paystack-1.0.5+1\android\src\main\kotlin\co\paystack\flutterpaystack\FlutterPaystackPlugin.kt: (48, 62): Type mismatch: inferred type is Activity? but Activity was expected
e: C:\src\flutter\flutter\.pub-cache\hosted\pub.dartlang.org\flutter_paystack-1.0.5+1\android\src\main\kotlin\co\paystack\flutterpaystack\MethodCallHandlerImpl.kt: (19, 37): Type mismatch: inferred type is BinaryMessenger? but BinaryMessenger was expected

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':flutter_paystack:compileDebugKotlin'.
> Compilation error. See log for more details

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

Please what might be the cause

Answer 1

package flutter_paystack: 1.0.5+1 not work on flutter 3

try change dependency of flutter_paystack 1.0.5+1 in pubspec.yaml to:

flutter_paystack:
    git:
      url: https://github.com/definitelyme/flutter_paystack.git
      ref: a4a33c3dd0a12f46d655a2e63d11e9f20ba82d01

Answer 2

转到您的android/build.gradle文件并更新您的Kotlin版本，希望对您有所帮助。

ext.kotlin_version = '1.6.10'

Answer 3

This is mostly a problem with the Flutter version 3.

The best bet you have is to downgrade your flutter to version 2.xx

This might conflict with other plugins you're using(like I experienced).

So you might as an alternative. Try embedding paystack payment in a webview. Create a web page, integrate paystack. Call that web page in a webview embedded in the app.

It might even be better if you're looking for extra payment options like bank transfer which isn't available on the flutter app plugin.