我正在我的ionic项目中运行这个命令
ionic cordova build android --prod --release
但是我遇到了以下错误：
k\build-tools\31.0.0-rc5\dx.bat
Build-tool 31.0.0 rc5 is missing DX at C:\Users\daees\AppData\Local\Android\Sdk\build-tools\31.0.0-rc5\dx.bat
FAILURE: Build failed with an exception.
* What went wrong:
Could not determine the dependencies of task ':app:compileReleaseJavaWithJavac'.
> Installed Build Tools revision 31.0.0-rc5 is corrupted. Remove and install again using the SDK Manager.
* 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 3s
Command failed with exit code 1: C:\Users\daees\Desktop\Ionic project\cam\platforms\android\gradlew cdvBuildRelease -b C:\Users\daees\Desktop\Ionic project\cam\platforms\android\build.gradle
[ERROR] An error occurred while running subprocess cordova.
cordova.cmd build android --release exited with exit code 1.
Re-running this command with the --verbose flag may provide more
information.
我已经在我的Android SDK中删除并添加了31.0.0-rc5\，但是我仍然遇到了相同的错误。
我也查看了其他Stack Overflow线程，但没有获得所需的结果。
我还尝试删除与版本31.0.0-rc5\相邻的工具，例如29.xx等，但这也没有帮助解决问题。
我运行了gradle -v，输出如下：
------------------------------------------------------------
Gradle 7.1.1
------------------------------------------------------------
Build time: 2021-07-02 12:16:43 UTC
Revision: 774525a055494e0ece39f522ac7ad17498ce032c
Kotlin: 1.4.31
Groovy: 3.0.7
Ant: Apache Ant(TM) version 1.10.9 compiled on September 27 2020
JVM: 1.8.0_291 (Oracle Corporation 25.291-b10)
OS: Windows 10 10.0 amd64
我该怎么办？
请帮帮我。