【发布时间】：2021-07-12 16:50:48
【问题描述】：
我按照以下website 中的步骤安装 psychtoolbox，但是它一直显示无法找到软件包... 我已经看过这个similar question 我假设安装了neurodebian nonfree ppa 这种情况发生在我更新到 Ubuntu 21.04 之后，它在 20.04 下可以正常工作。代码显示在本节末尾。我愿意提供任何进一步的信息，请帮助。
输出是
josh777@josh777-Surface-Book-3:~$ wget -O- http://neuro.debian.net/lists/hirsute.au.full | sudo tee /etc/apt/sources.list.d/neurodebian.sources.list
--2021-07-13 00:24:48-- http://neuro.debian.net/lists/hirsute.au.full
Resolving neuro.debian.net (neuro.debian.net)... 129.170.233.11
Connecting to neuro.debian.net (neuro.debian.net)|129.170.233.11|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 316 [audio/basic]
Saving to: ‘STDOUT’
- 100%[=============================================================>] 316 --.-KB/s in 0s
deb http://mirror.aarnet.edu.au/pub/neurodebian data main contrib non-free
#deb-src http://mirror.aarnet.edu.au/pub/neurodebian data main contrib non-free
deb http://mirror.aarnet.edu.au/pub/neurodebian hirsute main contrib non-free
#deb-src http://mirror.aarnet.edu.au/pub/neurodebian hirsute main contrib non-free
2021-07-13 00:24:48 (73.3 MB/s) - written to stdout [316/316]
josh777@josh777-Surface-Book-3:~$ sudo apt-key adv --recv-keys --keyserver hkps://keyserver.ubuntu.com 0xA5D32F012649A5A9
Warning: apt-key is deprecated. Manage keyring files in trusted.gpg.d instead (see apt-key(8)).
Executing: /tmp/apt-key-gpghome.HFxaCmjF60/gpg.1.sh --recv-keys --keyserver hkps://keyserver.ubuntu.com 0xA5D32F012649A5A9
gpg: key A5D32F012649A5A9: "NeuroDebian Archive Key <pkg-exppsy-maintainers@lists.alioth.debian.org>" not changed
gpg: Total number processed: 1
gpg: unchanged: 1
josh777@josh777-Surface-Book-3:~$ sudo apt-get update
Hit:1 http://mirror01.idc.hinet.net/ubuntu hirsute InRelease
Hit:2 http://mirror01.idc.hinet.net/ubuntu hirsute-updates InRelease
Hit:3 http://mirror01.idc.hinet.net/ubuntu hirsute-backports InRelease
Hit:4 http://mirror01.idc.hinet.net/ubuntu hirsute-security InRelease
Hit:5 http://dl.google.com/linux/chrome/deb stable InRelease
Get:6 http://tw.archive.ubuntu.com/ubuntu focal-updates InRelease [114 kB]
Hit:7 http://archive.canonical.com/ubuntu hirsute InRelease
Get:8 http://security.ubuntu.com/ubuntu focal-security InRelease [114 kB]
Hit:9 https://pkg.surfacelinux.com/debian release InRelease
Hit:10 http://mirror.aarnet.edu.au/pub/neurodebian data InRelease
Hit:11 http://mirror.aarnet.edu.au/pub/neurodebian hirsute InRelease
Get:12 http://mirror.aarnet.edu.au/pub/neurodebian data/non-free amd64 Packages [5961 B]
Get:13 http://mirror.aarnet.edu.au/pub/neurodebian data/non-free i386 Packages [5961 B]
Fetched 239 kB in 2s (97.2 kB/s)
Reading package lists... Done
josh777@josh777-Surface-Book-3:~$ sudo apt-get install matlab-psychtoolbox-3
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
E: Unable to locate package matlab-psychtoolbox-3
【问题讨论】：
标签： psychtoolbox