一、背景

brew install node命令安裝node完成后，node -v報下邊錯誤

dyld[59644]: Library not loaded: /usr/local/opt/icu4c/lib/libicui18n.66.dylib
  Referenced from: /usr/local/Cellar/node@10/10.20.1_1/bin/node
  Reason: tried: '/usr/local/opt/icu4c/lib/libicui18n.66.dylib' (no such file), '/usr/local/lib/libicui18n.66.dylib' (no such file), '/usr/lib/libicui18n.66.dylib' (no such file), '/usr/local/Cellar/icu4c/69.1/lib/libicui18n.66.dylib' (no such file), '/usr/local/lib/libicui18n.66.dylib' (no such file), '/usr/lib/libicui18n.66.dylib' (no such file)

二、解決方案

> which node
/usr/local/bin/node
> rm /usr/local/bin/node
> brew unlink node
> brew link --overwrite node

三、詳細過程如下

?  ~ ? node -v
dyld[59644]: Library not loaded: /usr/local/opt/icu4c/lib/libicui18n.66.dylib
  Referenced from: /usr/local/Cellar/node@10/10.20.1_1/bin/node
  Reason: tried: '/usr/local/opt/icu4c/lib/libicui18n.66.dylib' (no such file), '/usr/local/lib/libicui18n.66.dylib' (no such file), '/usr/lib/libicui18n.66.dylib' (no such file), '/usr/local/Cellar/icu4c/69.1/lib/libicui18n.66.dylib' (no such file), '/usr/local/lib/libicui18n.66.dylib' (no such file), '/usr/lib/libicui18n.66.dylib' (no such file)
[1]    59644 abort      node -v
?  ~ ? which node
/usr/local/opt/node@10/bin/node
?  ~ ? rm /usr/local/opt/node@10/bin/node
override r-xr-xr-x  wangjianwen/staff for /usr/local/opt/node@10/bin/node? yes
?  ~ ? brew unlink node
Unlinking /usr/local/Cellar/node/17.0.1... 66 symlinks removed.
?  ~ ? brew link --overwrite node
Linking /usr/local/Cellar/node/17.0.1... 66 symlinks created.
?  ~ ? node -v
v17.0.1
?  ~ ? npm -v
6.14.4

參考資料：
https://newbedev.com/javascript-dyld-library-not-loaded-usr-local-opt-icu4c-lib-libicui18n-67-dylib-code-example