mac 證書無法再「system root」 打開

提示「system root」無法打開密鑰，我們需要手動的吧「。cer」文件拖到登陸密鑰中。，如圖 ref: I've just had the same problem. For some reason Keychain Access wants to add to the System Roots keychain if you double click on the certificate.

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