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Node.js error

ERR_MESSAGE_TARGET_CONTEXT_UNAVAILABLE

A message posted to a MessagePort could not be deserialized in the target vm Context. Not all Node.js objects can be successfully instantiated in any context at this time, and attempting to transfer them using postMessage() can fail on the receiving side in that case.

Reference entryNode.jsFetched
This is a reference entry from Node.js documentation. A full explanation with fixes has not been written yet.

The error message

Node.js documentation lists the code ERR_MESSAGE_TARGET_CONTEXT_UNAVAILABLE without the printed message text.

Details

Category
Node.js error codes
Severity
error
Versions
Added in v14.5.0, v12.19.0
Runtime
node

Related errors

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Source: Node.js documentation. Data fetched 2026-09-25T01:43:12.379Z.