Which two scenarios would result in an error during catalog compilation?

In the context of catalog compilation in Puppet, one of the scenarios that would result in an error involves having a syntax error in the manifest. Syntax errors are critical issues that prevent the Puppet parser from interpreting the code correctly. If there is a mistake in the way the manifest is written, such as a missing curly brace, incorrect indentation, or improperly defined variables, the compilation process will halt, and an error message will be generated.

This scenario is crucial because Puppet relies on the correctness of the manifest to generate a catalog that describes the desired state of a system. Without a valid manifest, Puppet cannot proceed with applying the configuration to the nodes. Therefore, syntax errors are a fundamental cause of failure during the compilation phase.

The other scenarios may lead to warnings or other issues but would not necessarily stop the catalog from compiling outright, unlike syntax errors which are definitive barriers to processing the code.