मैं सिर्फ macbuntu स्थापित किया है और मैं किसी भी पैकेज स्थापित कर सकते हैं एक मैं त्रुटि हो रही रखने के लिए
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package mricron
मैंने कोशिश की है sudo apt-get update `और im त्रुटि हो रही है
W: Failed to fetch http://se.archive.ubuntu.com/ubuntu/dists/natty-updates/restricted/binary-amd64/Packages 404 Not Found [IP: 130.239.18.173 80]
W: Failed to fetch http://se.archive.ubuntu.com/ubuntu/dists/natty-updates/universe/binary-amd64/Packages 404 Not Found [IP: 130.239.18.173 80]
W: Failed to fetch http://se.archive.ubuntu.com/ubuntu/dists/natty-updates/multiverse/binary-amd64/Packages 404 Not Found [IP: 130.239.18.173 80]
W: Failed to fetch http://se.archive.ubuntu.com/ubuntu/dists/natty-backports/main/binary-amd64/Packages 404 Not Found [IP: 130.239.18.173 80]
W: Failed to fetch http://se.archive.ubuntu.com/ubuntu/dists/natty-backports/restricted/binary-amd64/Packages 404 Not Found [IP: 130.239.18.173 80]
W: Failed to fetch http://se.archive.ubuntu.com/ubuntu/dists/natty-backports/universe/binary-amd64/Packages 404 Not Found [IP: 130.239.18.173 80]
W: Failed to fetch http://se.archive.ubuntu.com/ubuntu/dists/natty-backports/multiverse/binary-amd64/Packages 404 Not Found [IP: 130.239.18.173 80]
E: Some index files failed to download. They have been ignored, or old ones used instead.
मैं इसे कैसे ठीक करूं। अग्रिम में धन्यवाद