DF0004.md

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DF0004: Terminal Session Already Registered

Message

Terminal session with id "{id}" already registered

Cause

DevToolsTerminalHost.register() already has a session under that id.

Fix

Use a unique session id or call unregister(id) first.

Source

• packages/devframe/src/node/host-terminals.ts — DevToolsTerminalHost.register() (and the internal terminal-creation path) throw DF0004 when a session id is already in use.