Remove room database on app uninstall // Android Dev Diary

The problem:

Installing on an Android device that has an old version of an app I’m developing triggers an error:

Room Database Migration: java.lang.IllegalStateException: Migration didn't properly handle

Problem persists despite uninstalling the Android app and deleting all app data.

The solution:

Very simple. I set allowBackup to false in my AndroidManifest.xml file like so:


Then I reinstalled the app on the Android device. Error was still triggered on first install, but after one more round of uninstall and reinstall, the error finally went away!

Side Note / Quick Life Update:

I have been working on an app, with me as its first user. I tentatively call it “bodymonitor”. It should let me log foods I ate, meds/supplements I took, and body sensations. My brain does not do a good job of monitoring these things so I shall get an app to help me do it. There are existing apps out there that do more or less the same thing, but I want one that caters to my specific needs. Doesn’t hurt to practice Android app development as I make the app, too!

This weekend I’ll undergo endoscopy again, but this time it’s called a “flexible nasopharyngolaryngoscopy” which will pass through the nose instead of the mouth, to be done under local anesthesia. From the sound of it I don’t expect to be put to sleep, which makes me less anxious, but still anxious. XD It’s gonna be done because of my throat issues.

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A Filipino programmer with a variety of interests such as baking, singing, making up silly song/rap lyrics, K-pop, drawing, creating unique dessert flavors, obsessing about finding out how some things works, board games, anime, video games, and forgetting things that usually go in her long list of interests. Running small-time online dessert shops Cookies PH and Catzie's Cakery.

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