diff --git a/xiaofang/Assets/Plugins/System.Runtime.CompilerServices.Unsafe.dll b/xiaofang/Assets/Plugins/System.Runtime.CompilerServices.Unsafe.dll
new file mode 100644
index 00000000..491a80a9
Binary files /dev/null and b/xiaofang/Assets/Plugins/System.Runtime.CompilerServices.Unsafe.dll differ
diff --git a/xiaofang/Assets/Plugins/System.Runtime.CompilerServices.Unsafe.dll.meta b/xiaofang/Assets/Plugins/System.Runtime.CompilerServices.Unsafe.dll.meta
new file mode 100644
index 00000000..b747524a
--- /dev/null
+++ b/xiaofang/Assets/Plugins/System.Runtime.CompilerServices.Unsafe.dll.meta
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