[4.0 beta10 Bug] When you try to close a running project, if the Node in the project activates the function _notification (), the project will report an error, as shown in the figure.

[Atem1995]

Godot version

4.0 beta 10

System information

Window10

Issue description

When you try to close a running project, if the Node in the project activates the function _notification (), the project will report an error, as shown in the figure.

Steps to reproduce

When you try to close a running project, if the Node in the project activates the function _notification (), the project will report an error, as shown in the figure.

Minimal reproduction project

When you try to close a running project, if the Node in the project activates the function _notification (), the project will report an error, as shown in the figure.

[Rindbee]

May be caused by NOTIFICATION_PREDELETE. Excluding it should help.

[Atem1995]

Sorry, I don't quite understand the solution.

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------------------ 原始邮件 ------------------ 发件人: "godotengine/godot" ***@***.***>; 发送时间: 2023年1月2日(星期一) 晚上7:46 ***@***.***>; ***@***.******@***.***>; 主题: Re: [godotengine/godot] [4.0 beta10 Bug] When you try to close a running project, if the Node in the project activates the function _notification (), the project will report an error, as shown in the figure. (Issue #70828) May be caused by NOTIFICATION_PREDELETE. Excluding it should help. — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you authored the thread.Message ID: ***@***.***>

[Maran23]

Sorry, I don't quite understand the solution.

The notification NOTIFICATION_PREDELETE is send before the node is deleted. If you receive this signal, you better just do nothing since the object is about to be deleted.

[kleonc]

The issue is if state check is not reliable (it evaluates to true when state refers to an already freed object). Using if is_instance_valid(state) should make it work as expected.

Duplicate of #44861, related to #59816.

[Atem1995]

Thank you for your help, all of you!It works!

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------------------ 原始邮件 ------------------ 发件人: "godotengine/godot" ***@***.***>; 发送时间: 2023年1月3日(星期二) 凌晨1:12 ***@***.***>; ***@***.******@***.***>; 主题: Re: [godotengine/godot] [4.0 beta10 Bug] When you try to close a running project, if the Node in the project activates the function _notification (), the project will report an error, as shown in the figure. (Issue #70828) The issue is if state check is not reliable (it evaluates to true when state refers to an already freed object). Using if is_instance_valid(state) should make it work as expected. Duplicate of #44861, related to #59816. — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you authored the thread.Message ID: ***@***.***>