I am installing a .deb file. I have all dependencies met but I still get an error. What is an incorrect data check?

hayden@hayden-SVT13118FXS:~$ sudo su
[sudo] password for hayden:
root@hayden-SVT13118FXS:/home/hayden# cd Desktop
root@hayden-SVT13118FXS:/home/hayden/Desktop# ls
Minecraft.jar  NBTExplorer-2.7.6.msi  popmmo.png  unity.deb
root@hayden-SVT13118FXS:/home/hayden/Desktop# dpkg -i unity.deb
(Reading database ... 222778 files and directories currently installed.)
Preparing to unpack unity.deb ...
Unpacking unity-editor (5.10f3) ...
dpkg-deb (subprocess): decompressing archive member: internal gzip read error: '
<fd:4>: incorrect data check'
dpkg-deb: error: subprocess <decompress> returned error exit status 2
dpkg: error processing archive unity.deb (--install):
 subprocess dpkg-deb --fsys-tarfile returned error exit status 2
Errors were encountered while processing:

This is not on apt-get or software center because I am beta testing it.

  • 1
    Welcome to Ask Ubuntu! Please consider providing text outputs instead of screenshots. It helps finding the question and improves formatting. Thanks – Anwar Nov 1 '16 at 17:38
  • 2
    You should be installing with apt-get or software center not downloading and installing .deb from who knows where. To answer the question either the download is corrupt or you need to file a bug report wherever you found the .deb. help.ubuntu.com/stable/ubuntu-help/addremove-install.html – Panther Nov 1 '16 at 17:42
  • Might also be worth trying to re-download the .deb file or comparing hash sums if they're provided on the website you got it from, to verify it has been downloaded correctly. Other than that, what bodhi.zazen said above still applies. – Byte Commander Nov 1 '16 at 17:43
  • It isn't on apt-get or software center, it is a beta version and I am testing. Unity – Hayden Stites Nov 1 '16 at 17:45