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Your Flutter desktop app won't start: one corrupt preferences file

by Frank Milvus dev.to November 6, 2026

9 min read

Read on dev.to

The report was short: the desktop build opens and closes immediately. No window, no error dialog, nothing to click. On the terminal, the process printed a stack trace and quit before anything appeared on screen. The cause was not a broken build, a missing library, or a failed update. It was one settings file with a missing bracket. This post is about that failure and the fix: how a single corrupt…

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Topics Flutter on desktop