将 Ubuntu 升级到 20.04 LTS 后，GNS3 应用程序不再启动。
输出如下：
v@V-PC:~$ gns3
Could not find platform independent libraries <prefix>
Could not find platform dependent libraries <exec_prefix>
Consider setting $PYTHONHOME to <prefix>[:<exec_prefix>]
Fatal Python error: initfsencoding: Unable to get the locale encoding
ModuleNotFoundError: No module named 'encodings'
Current thread 0x00007f19c8132740 (most recent call first):
Aborted (core dumped)
我该如何解决这个问题？我认为这不是 GNS 的问题。它一直是一个稳定的应用程序。
我尝试执行上述步骤，但我看到什么都没有改变......我做错了什么？
vitek@Vitek-PC:~$ sudo add-apt-repository ppa:gns3/ppa
[sudo] password for vitek:
PPA for GNS3 and Supporting Packages. Please see More info: Press [ENTER] to continue or Ctrl-c to cancel adding it.
Hit:1 ua.archive.ubuntu.com/ubuntu focal InRelease
Get:2 ua.archive.ubuntu.com/ubuntu focal-updates InRelease [107 kB]
Get:3 ua.archive.ubuntu.com/ubuntu focal-backports InRelease [98,3 kB]
Get:4 ppa.launchpad.net/gns3/ppa/ubuntu focal InRelease [17,5 kB]
Get:5 ua.archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages [143 kB]
Get:6 ua.archive.ubuntu.com/ubuntu focal-updates/main i386 Packages [66,0 kB]
Get:7 ua.archive.ubuntu.com/ubuntu focal-updates/main amd64 DEP-11 Metadata [92,4 kB]
Get:8 ua.archive.ubuntu.com/ubuntu focal-updates/universe i386 Packages [29,3 kB]
Get:9 ua.archive.ubuntu.com/ubuntu focal-updates/universe amd64 Packages [73,1 kB]
Get:10 security.ubuntu.com/ubuntu focal-security InRelease [107 kB]
Get:11 ua.archive.ubuntu.com/ubuntu focal-updates/universe amd64 DEP-11 Metadata [136 kB]
Get:12 ua.archive.ubuntu.com/ubuntu focal-backports/universe amd64 DEP-11 Metadata [532 B]
Get:13 security.ubuntu.com/ubuntu focal-security/main amd64 Packages [87,2 kB]
Get:14 security.ubuntu.com/ubuntu focal-security/main i386 Packages [29,8 kB]
Get:15 security.ubuntu.com/ubuntu focal-security/main Translation-en [33,2 kB]
Get:16 security.ubuntu.com/ubuntu focal-security/main amd64 DEP-11 Metadata [18,7 kB]
Get:17 security.ubuntu.com/ubuntu focal-security/universe amd64 Packages [31,7 kB]
Get:18 security.ubuntu.com/ubuntu focal-security/universe i386 Packages [9 880 B]
Get:19 security.ubuntu.com/ubuntu focal-security/universe Translation-en [15,0 kB]
Get:20 security.ubuntu.com/ubuntu focal-security/universe amd64 DEP-11 Metadata [208 B]
Fetched 1 095 kB in 1s (1 041 kB/s)
Reading package lists... Done
vitek@Vitek-PC:~$ sudo apt update
Hit:1 ua.archive.ubuntu.com/ubuntu focal InRelease
Hit:2 ua.archive.ubuntu.com/ubuntu focal-updates InRelease
Hit:3 ua.archive.ubuntu.com/ubuntu focal-backports InRelease
Hit:4 ppa.launchpad.net/gns3/ppa/ubuntu focal InRelease
Hit:5 security.ubuntu.com/ubuntu focal-security InRelease
Reading package lists... Done
Building dependency tree
Reading state information... Done
All packages are up to date.
vitek@Vitek-PC:~$
vitek@Vitek-PC:~$ sudo apt install gns3-gui
Reading package lists... Done
Building dependency tree
Reading state information... Done
gns3-gui is already the newest version (2.2.8~eoan2).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
vitek@Vitek-PC:~$
vitek@Vitek-PC:~$ gns3
Could not find platform independent libraries <prefix>
Could not find platform dependent libraries <exec_prefix>
Consider setting $PYTHONHOME to <prefix>[:<exec_prefix>]
Fatal Python error: initfsencoding: Unable to get the locale encoding
ModuleNotFoundError: No module named 'encodings'
Current thread 0x00007fdfe480c740 (most recent call first):
Aborted (core dumped)
vitek@Vitek-PC:~$ gns3-gui
gns3-gui: command not found
vitek@Vitek-PC:~$
vitek@Vitek-PC:~$
vitek@Vitek-PC:~$ gns3
Could not find platform independent libraries <prefix>
Could not find platform dependent libraries <exec_prefix>
Consider setting $PYTHONHOME to <prefix>[:<exec_prefix>]
Fatal Python error: initfsencoding: Unable to get the locale encoding
ModuleNotFoundError: No module named 'encodings'
Current thread 0x00007f11afefb740 (most recent call first):
Aborted (core dumped)
答案1
通过重新安装 GNS3 解决问题。
答案2
UBUNTU 升级到 20.4 LTS 后 GNS3 无法启动
Ubuntu 18.04 GNS3 版本无法在 20.04 中使用：它缺少qt4、python-qt4软件包依赖项。
您可以使用以下 PPA 代替 20.04https://launchpad.net/~gns3/+archive/ubuntu/ppa
sudo add-apt-repository ppa:gns3/ppa
sudo apt update
sudo apt install gns3-gui
$ gns3：GNS3 窗口打开后正常。