[经验分享] Call to ‘set-and-coerce-property!’ has too few arguments (3； must be 4)

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| 编译apk，报错：Call to 'set-and-coerce-property!' has too few arguments (3; must be 4) 原因是因为代码块有问题/报错，有空的地方没有填值，比如这种： |

原文：Call to 'set-and-coerce-property!' has too few arguments (3; must be 4) - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！