Found this post with the same issue, with a different error message.
This answer helped me to solve the issue.
Posting the same here.
Create a robolectric.properties file inside the app/src/test/resources directory with the following line:
sdk=29
This will force Robolectric to use API 29 instead of 30.
Note: Robolectric supports up to SDK 29 now (As on Sep 4th, 2020).