DF8105: Devframe Already Mounted
Devframe "{name}" (id "{id}") is already mounted on this hub
Message
Devframe "{name}" (id "{id}") is already mounted on this hub
Cause
ctx.install(def) was called with a devframe whose id already belongs to another devframe on the same hub. Devframes are deduplicated by id.
Fix
Set duplicationStrategy on the definition to choose how duplicates are handled:
'duplicate': let every instance coexist under a disambiguated dock id (my-tool,my-tool-2, …).'silent': drop duplicates quietly.'throw': surface duplicates as errors.
Otherwise, remove the redundant ctx.install call (or duplicate devframes entry) so each devframe mounts once.
Source
packages/hub/src/node/install-devframe.ts:ctx.install()emits this when a devframe sharing an already-mountedidis installed and the strategy is not'duplicate'.
DF8104: Nested Dock Groups Unsupported
Dock group "{id}" cannot itself belong to a group (nested groups are unsupported)
DF8106: Connection Meta Not Served
The host cannot serve the RPC connection meta for devframe "{name}" (id "{id}") at "{base}"; its DevframeHost does not implement mountConnectionMeta.