Attention: Here be dragons

This is the latest (unstable) version of this documentation, which may document features not available in or compatible with released stable versions of Godot.

Checking the stable version of the documentation...

GD0102: The type of the exported member is not supported

Rule ID	GD0102
Category	用法
Fix is breaking or non-breaking	Breaking - If the member type is changed Non-breaking - If the [Export] attribute is removed
Enabled by default	Yes

Cause

An unsupported type is specified for a member annotated with the [Export] attribute when a Variant-compatible type is expected.

Rule description

Every exported member must be Variant-compatible so it can be marshalled by the engine.

class SomeType { }

// SomeType is not a valid member type because it doesn't derive from GodotObject,
// so it's not compatible with Variant.
[Export]
public SomeType InvalidProperty { get; set; }

// System.Int32 is a valid type because it's compatible with Variant.
[Export]
public int ValidProperty { get; set; }

How to fix violations

To fix a violation of this rule, change the member's type to be Variant-compatible or remove the [Export] attribute.

When to suppress warnings

Do not suppress a warning from this rule. Members with types that can't be marshalled will result in runtime errors.