Error Messages¶
This page collects common SchemAlign error patterns and suggested resolutions.
Expression value not available¶
Suggested resolution:
- define the named value
- connect the publishing node upstream
- verify the field supports expressions
SQL scalar returned multiple rows¶
Suggested resolution:
- add a filter
- aggregate the query
- limit to the intended row
- confirm the expression is truly scalar
Credential unavailable¶
Suggested resolution:
- verify organization context
- re-test the credential
- confirm user permissions
- check the environment
Custom node runtime unavailable¶
Suggested resolution:
- confirm the custom node runtime exists
- confirm dependency environment build succeeded
- do not fall back to shared worker Python for unsafe custom node execution