Homebrew update 遇到 Error: Failure while executing

In use brew when，Often you will encounter all kinds of weird errors，Such as updating time often encountered：

and this：

Experiencing these problems，Eighty per cent of your brew directory permissions error。

Use the following command to repair：

if not，Install the following command to fix it again：

If that does not reload it ...... ...... deleted all the commands I use and repair is successful。

Reference pageHere。

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