[Pranto]

After uninstalling openfoam7 by

 sudo apt-get remove --auto-remove openfoam7

I tried to install openfoam8 by

sudo apt-get -y install openfoam8

But got the following error

Need to get 152 MB/163 MB of archives.
After this operation, 1,076 MB of additional disk space will be used.
Get:1 https://downloads.sourceforge.net/#!/project/foam/foam/ubuntu bionic/main amd64 openfoam8 amd64 20200722 [85.3 MB]
Err:1 https://downloads.sourceforge.net/#!/project/foam/foam/ubuntu bionic/main amd64 openfoam8 amd64 20200722
  File has unexpected size (746 != 85329728). Mirror sync in progress? [IP: 13.225.21.72 443]
  Hashes of expected file:
   - SHA256:3cfc7f860303a151fa3b6777f834d5ae720f77cb8b1bbbc36ce90ff23170470a
   - SHA1:1f3558a8f58b3c87a352003725f71b99f1626ce1 [weak]
   - MD5Sum:0f6fd2635004d3352532a734dca501a6 [weak]
   - Filesize:85329728 [weak]
Get:2 https://downloads.sourceforge.net/#!/project/foam/foam/ubuntu bionic/main amd64 paraviewopenfoam56 amd64 0-20190221 [66.3 MB]
Err:2 https://downloads.sourceforge.net/#!/project/foam/foam/ubuntu bionic/main amd64 paraviewopenfoam56 amd64 0-20190221
  File has unexpected size (746 != 66306524). Mirror sync in progress? [IP: 13.225.21.72 443]
  Hashes of expected file:
   - SHA256:d159c438b4527ed999c66448b8f2d5d2f87ba080314fb13b524ac5b95afa4d48
   - SHA1:751c378f7aeb4f18e579e201c24b2ef3610dd3b1 [weak]
   - MD5Sum:f5abb67997140a94078a8bd6ec590016 [weak]
   - Filesize:66306524 [weak]
E: Failed to fetch https://downloads.sourceforge.net/#!/project/foam/foam/ubuntu/dists/bionic/main/binary-amd64/openfoam8_20200722_amd64.deb  File has unexpected size (746 != 85329728). Mirror sync in progress? [IP: 13.225.21.72 443]
   Hashes of expected file:
    - SHA256:3cfc7f860303a151fa3b6777f834d5ae720f77cb8b1bbbc36ce90ff23170470a
    - SHA1:1f3558a8f58b3c87a352003725f71b99f1626ce1 [weak]
    - MD5Sum:0f6fd2635004d3352532a734dca501a6 [weak]
    - Filesize:85329728 [weak]
E: Failed to fetch https://downloads.sourceforge.net/#!/project/foam/foam/ubuntu/dists/bionic/main/binary-amd64/paraviewopenfoam56_0-20190221_amd64.deb  File has unexpected size (746 != 66306524). Mirror sync in progress? [IP: 13.225.21.72 443]
   Hashes of expected file:
    - SHA256:d159c438b4527ed999c66448b8f2d5d2f87ba080314fb13b524ac5b95afa4d48
    - SHA1:751c378f7aeb4f18e579e201c24b2ef3610dd3b1 [weak]
    - MD5Sum:f5abb67997140a94078a8bd6ec590016 [weak]
    - Filesize:66306524 [weak]
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

I tried to fix this error by

sudo apt update --fix-missing

But none of them working.



How to solve this problem?