Internal error: An attempt was made to expand the "app' constant before it was initialized.

Internal error: An attempt was made to expand the "app' constant before it was initialized.

题目
Internal error: An attempt was made to expand the "app' constant before it was initialized.
什么意思
答案
内部错误:在初始化之前尝试扩大app常量
没有初始化.
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