First, exactly which version of Android is the device running? The latest offered by the Android development tools is 7.1.
The only permission that CC asks for and that Android lets you revoke is "Storage". CC checks that permission every time it starts and won't continue without it.
I don't have a physical device running Android 7 so I fired up an emulated one. CC ran without problems. However, the emulator doesn't support SD cards so the test isn't perfect.
The images below show what I did step by step.
Ahhh --- Googling
Quote:
first activate documents under settings apps
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finds this page. It might help. The same search finds several videos showing how to solve the problem.