在没有最小，完整和可验证的示例的情况下，演示了重现您困难的步骤，一个人只能猜测.

In absence of Minimal, Complete, and Verifiable example that demonstrates steps to reproduce your difficulty, one can only guess.

在Android Gradle插件的bugtracker中通过单词"JaCoCo"简单搜索例如显示

• https://issuetracker.google.com/issues/112324134
• https://issuetracker.google.com/issues/117956165
• https://issuetracker.google.com/issues/111569276
• https://issuetracker.google.com/issues/120438249

• https://issuetracker.google.com/issues/112324134
• https://issuetracker.google.com/issues/117956165
• https://issuetracker.google.com/issues/111569276
• https://issuetracker.google.com/issues/120438249

具有相同的根本原因

在新版本的AGP中，

类文件的位置已更改.你需要 改变

Location of class files has changed in newer versions of AGP. You need to change

def debugTree = fileTree(dir: "$ {buildDir}/intermediates/classes/debug"，不包括:fileFilter)

def debugTree = fileTree(dir: "${buildDir}/intermediates/classes/debug", excludes: fileFilter)

到

def debugTree = fileTree(dir:"$ {buildDir}/intermediates/javac/debug"， 不包括:fileFilter)

def debugTree = fileTree(dir: "${buildDir}/intermediates/javac/debug", excludes: fileFilter)

P.S.旧报表与新报表的并排比较也可以给出提示

P.S. side-by-side comparison of old report with a new one can also give hints