خطای sudo: /usr/bin/sudo must be owned by uid 0 and have the setuid bit set

سلام
من در استفاده از sudo با این خطا مواجه میشم...
sudo: /usr/bin/sudo must be owned by uid 0 and have the setuid bit set
مشکل چیه و چطور حلش کنم؟ ممنون

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