我在构建扑扑apk时遇到问题。 当我尝试使用webview支持构建apk时，显示此构建错误。 它显示signingConfigWriterRelease FAILED。
`[ +196 ms] > Task :app:processReleaseJavaRes NO-SOURCE
[ ] > Task :app:validateSigningRelease UP-TO-DATE
[ ] > Task :app:signingConfigWriterRelease FAILED //ERROR
[ +199 ms] > Task :app:javaPreCompileRelease
[+2907 ms] > Task :app:desugarReleaseFileDependencies
[ +15 ms] 125 actionable tasks: 19 executed, 106 up-to-date
[ +499 ms] Running Gradle task 'assembleRelease'... (completed in 58.5s)
[ +6 ms] "flutter apk" took 63,217ms.
Gradle task assembleRelease failed with exit code 1
#0 throwToolExit (package:flutter_tools/src/base/common.dart:28:3)
#1 _buildGradleProjectV2
(package:flutter_tools/src/android/gradle.dart:751:5)
<asynchronous suspension>
#2 buildGradleProject
(package:flutter_tools/src/android/gradle.dart:494:14)
<asynchronous suspension>
#3 buildApk (package:flutter_tools/src/android/apk.dart:34:9)`