This operation expects the node's input data to contain a binary file, but none was found.
Hi everyone,
I'm facing an issue in my n8n workflow. I have a Gmail Trigger node that successfully retrieves an email attachment (a PDF file), which is visible in the binary data tab. However, when I pass this file to the Httprequest node, I get the following error:
"This operation expects the node's input data to contain a binary file 'attachment_0', but none was found."
Here’s what I’ve checked so far:
  • The file is correctly received from the Gmail Trigger (shown in binary data).
  • The "Input Data Field Name" in the Httprequest node is set to attachment_0.
  • The Body Content Type is set to "n8n Binary File".
Despite this, the node still does not recognize the binary file. Am I missing any step? Any suggestions would be appreciated!
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Abhilash Tengli
1
This operation expects the node's input data to contain a binary file, but none was found.
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