flutter build appbundle "FAILURE: Build failed with an exception“

Question

我正在尝试将我的第一个Flutter应用程序安装到PlayStore上。我在Android上遵循下面的说明：

https://flutter.dev/docs/deployment/android

当我看到关于构建appbundle的说明时，我遇到一个错误：

flutter build appbundle
Running "flutter pub get" in weight_list...                         4.9s

Building without sound null safety
For more information see https://dart.dev/null-safety/unsound-null-safety

Running Gradle task 'bundleRelease'...      

                  

















FAILURE: Build failed with an exception.

* Where:
Build file '/Users/michaelalbrecht/StudioProjects/weight_list/android/app/build.gradle' line: 29

* What went wrong:
A problem occurred evaluating project ':app'.
> No signature of method: java.util.Properties.exists() is applicable for argument types: () values: []
  Possible solutions: list(java.io.PrintStream), list(java.io.PrintWriter), wait(), equals(java.lang.Object), wait(long), equals(java.lang.Object)

* 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.

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

BUILD FAILED in 4s
Running Gradle task 'bundleRelease'...                              5.9s
Gradle task bundleRelease failed with exit code 1
Process finished with exit code 1

它说问题在build.gradle的第29行。对于我来说，第29行是以下代码中的第三行，这是文档告诉我要添加的内容：

def keystoreProperties = new Properties()
def keystorePropertiesFile = rootProject.file('key.properties')
if (keystoreProperties.exists()) {
    keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
}

我在想key.properties文件有问题(这个文件应该是保密的，所以我不能和你分享)。但我遵循了文档中的说明，所以我不确定问题出在哪里。

有什么想法吗？

Answer 1

您将在keyStoreProperties上调用.exists()，而不是在keyStorePropertiesFile上。像这样更改第29行：

if (keystorePropertiesFile.exists()) {
    keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
}