gamemaker纯新手按b站教程做的，为什么运行不了？

1. https://www.google.com/search?q=+gamemaker+%E4%BB%85%E8%A2%AB%E5%BC%95%E7%94%A8%E4%B8%80%E6%AC%A1
2. https://manual-zh.yoyogames.com/Additional_Information/Errors/Syntax_Errors.htm
3. https://manual.yoyogames.com/Additional_Information/Errors/Syntax_Errors.htm
4. https://www.google.com/search?q=Variable%20%5Bval%5D%20only%20referenced%20once

答案

• https://www.reddit.com/r/gamemaker/comments/bd7r49/variable_one_referenced_once_error/
• https://www.reddit.com/r/gamemaker/comments/bkjutf/variable_xyz_only_referenced_once/

所以我猜是GameMaker把原本是语法警告的东西在后来的版本里改成了语法错误.