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qsieve error

I'm trying to run the qsieve function in sage (version 8.9) and I'm getting a file or directory error.

For example, when I try the code

n = next_prime(10^20)*next_prime(10^21)
q,t = qsieve(n,time = True)

I get the error,

OSError: [Errno 2] No such file or directory.

I tried looking up if there was an additional library or package I needed to download to make the qsieve function work, but I couldn't find anything. Any advice or insight would be appreciated.