Package name does not correspond to the file path – IntelliJ

I had this same issue, and fixed it by modifying my project’s .iml file:

From:

<content url="file://$MODULE_DIR$">
  <sourceFolder url="file://$MODULE_DIR$/src/wrong/entry/here" isTestSource="false" />
  <sourceFolder url="file://$MODULE_DIR$/test" isTestSource="true" />
  <excludeFolder url="file://$MODULE_DIR$/target" />
</content>

To:

<content url="file://$MODULE_DIR$">
  <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
  <sourceFolder url="file://$MODULE_DIR$/test" isTestSource="true" />
  <excludeFolder url="file://$MODULE_DIR$/target" />
</content>

Somehow a package folder became specified as the root source directory when this project was imported.