编辑: 感谢您的回答,但我无法找到proguard.cfg文件。在项目的根目录中,我只有local.properties文件,当我在Android Studio中打开它时,我得到了这个:
# This file is automatically generated by Android Studio.
# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
#
# This file must *NOT* be checked into Version Control Systems,
# as it contains information specific to your local configuration.
# Location of the SDK. This is only used by Gradle.
# For customization when using a Version Control System, please read the
# header note.
sdk.dir=C:/.../...