This error occurs when you use a constant or protocol identifier when FIDL is expecting a type.
{% include “docs/reference/fidl/language/error-catalog/label/_bad.md” %}
{% includecode gerrit_repo="fuchsia/fuchsia" gerrit_path="tools/fidl/fidlc/tests/fidl/bad/fi-0165.test.fidl" exclude_regexp="\/\/ (Copyright 20|Use of|found in).*" %}
To fix this error, update your code to use a valid type:
{% include “docs/reference/fidl/language/error-catalog/label/_good.md” %}
{% includecode gerrit_repo="fuchsia/fuchsia" gerrit_path="tools/fidl/fidlc/tests/fidl/good/fi-0165.test.fidl" exclude_regexp="\/\/ (Copyright 20|Use of|found in).*" %}
Protocols are not considered FIDL types and also cannot be used where a type is expected.
