How to Fix Docker 'Code Exited (1)' Error on Raspberry Pi

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The 'Exited (1)' error in Docker indicates the container's main process terminated with a non-zero exit code, often caused by architecture incompatibility. On Raspberry Pi, this commonly occurs when running Docker images built for x86/x64 systems on ARM-based hardware, resulting in errors like 'Exec format error' or 'Illegal instruction'. Developers can diagnose the issue by checking the device architecture with 'uname -m' and verifying whether the Docker image supports ARM. The recommended fix is to use Docker Buildx to build multi-architecture images targeting linux/arm/v7 or linux/arm64 platforms natively. Additionally, a common syntax mistake — using spaces in '--net=host' — can silently cause network failures and should be corrected.

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