Can’t get data for expression

Questions
1

Was 2 versions behind latest and server rebooted. Now seeing loads of errors around ‘Can’t get data for expression’

I have a workflow which uses a loop node. Passes in data to a subworkflow and does some things. It uses the ‘id’ property I pass in to update a row on a MYSQL DB. However since the server booting and bringing me to the latest I am seeing this error constantly. Seems like it cant find the data I am passing in? All other nodes it seems to work on however just on a MySQL node

  • n8n version: 1.38.2
  • **Database (default: SQLite):**SQLite
  • n8n EXECUTIONS_PROCESS setting (default: own, main):
  • **Running n8n via (Docker, npm, n8n cloud, desktop app):**Docker
  • Operating system:
2

It looks like your topic is missing some important information. Could you provide the following if applicable.

  • n8n version:
  • Database (default: SQLite):
  • n8n EXECUTIONS_PROCESS setting (default: own, main):
  • Running n8n via (Docker, npm, n8n cloud, desktop app):
  • Operating system:
3

Hey @dougieled,

Can you share the full error? Restarting the server shouldn’t cause this so it could be that something else changed but it will be interesting to get to the bottom of this one.

4

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