将此行添加到proguard-project.txt文件中。

# will keep line numbers and file name obfuscation

-renamesourcefileattribute SourceFile
-keepattributes SourceFile,LineNumberTable

https://www.guardsquare.com/en/products/proguard/manual/usage

创建新的android项目时，它会告诉您哪些行可能需要取消注解：

# If your project uses WebView with JS, uncomment the following

# and specify the fully qualified class name to the JavaScript interface

# class:

# -keepclassmembers class fqcn.of.javascript.interface.for.webview {

# public *;

# }

# Uncomment this to preserve the line number information for

# debugging stack traces.

# -keepattributes SourceFile,LineNumberTable

# If you keep the line number information, uncomment this to

# hide the original source file name.

# -renamesourcefileattribute SourceFile

所以，你应该考虑一下：

-keepattributes SourceFile,LineNumberTable
-renamesourcefileattribute SourceFile

但是，请注意，出于某种原因，firebase crashlytics团队告诉我，这条线路可能会干扰他们的服务：

-renamesourcefileattribute SourceFile

因此，如果使用它，您可能看不到堆栈跟踪的良好信息。