如何解决错误无法执行“ qemu”

Question

我正在用平托做家庭作业。对于设置，我正在关注this。 跑步

SELECT d.Description, w1.Description & ' ' & w2.Description & ' ' & w3.Description  AS sentence
FROM
    ((dictionary d
    LEFT JOIN words w1 ON d.Id = w1.Id)
    LEFT JOIN words w2 ON d.Id = w2.Id)
    LEFT JOIN words w3 ON d.Id = w3.Id

我遇到了错误

./pintos run alarm-multiple

我该如何解决错误？