Flutterで作ったapkキーを作る

keytool -genkey -v -keystore my-release-key.jks -keyalg RSA -keysize 2048 -validity 10000 -alias mykey

のコマンドでやった。

keytool -genkey -v -keystore my-release-key.jks

はダメだった・・。

さもないとこっちのエラーでた。

 flutter build apk 2059ms  日 11/18 14:06:06 2018
Initializing gradle...                                       1.8s
Resolving dependencies...                                    1.6s
Gradle task 'assembleRelease'...

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:packageRelease'.
> Failed to generate v1 signature

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

* Get more help at https://help.gradle.org

BUILD FAILED in 4s