Bug 1406711

Temporary fix:
sudo pip3 install aiohttp==0.21.5

I have 1.5.2 which is in testing repo, while response to GET http://127.0.0.1:3080/ is HTTP/1.1 405 Method Not Allowed, it seems to work correctly, here's an output from gns3,  python3-aiohttp is 1.0.5


2016-12-21 19:54:34 INFO http_client.py:421 Connection to http://127.0.0.1:3080
2016-12-21 19:54:34 DEBUG http_client.py:576 GET http://127.0.0.1:3080/v1/version {}
2016-12-21 19:54:34 DEBUG http_client.py:711 Decoding response from http://Hr1ASjH6L8QEQgQVm4YosITX6Q1SL1IZbqZy3KRVGMvIiuOkP9T3tOiD7AWbZsKL@127.0.0.1:3080/v1/version response 2
00
2016-12-21 19:54:34 DEBUG http_client.py:718 {
    "local": true,  
    "version": "1.5.2"
}
2016-12-21 19:54:34 DEBUG http_client.py:576 POST http://127.0.0.1:3080/v1/projects {'name': 'unsaved', 'temporary': True, 'project_id': None, 'path': None}
2016-12-21 19:54:34 DEBUG http_client.py:711 Decoding response from http://Hr1ASjH6L8QEQgQVm4YosITX6Q1SL1IZbqZy3KRVGMvIiuOkP9T3tOiD7AWbZsKL@127.0.0.1:3080/v1/projects response 
201
2016-12-21 19:54:34 DEBUG http_client.py:718 {
    "location": "/home/athmane/GNS3/projects",
    "name": "unsaved",
    "path": "/home/athmane/GNS3/projects/c710f714-6430-49b4-b691-3376166af1eb",
    "project_id": "c710f714-6430-49b4-b691-3376166af1eb",
    "temporary": true
}
2016-12-21 19:54:34 INFO project.py:299 Server project path is /home/athmane/GNS3/projects/c710f714-6430-49b4-b691-3376166af1eb
2016-12-21 19:54:34 DEBUG http_client.py:576 GET http://127.0.0.1:3080/v1/projects/c710f714-6430-49b4-b691-3376166af1eb/notifications {}
2016-12-21 19:54:34 DEBUG http_client.py:576 POST http://127.0.0.1:3080/v1/projects/c710f714-6430-49b4-b691-3376166af1eb/dynamips/vms {'startup_config_content': '!\nservice tim
estamps debug datetime msec\nservice timestamps log datetime msec\nno service password-encryption\n!\nhostname %h\n!\nip cef\nno ip domain-lookup\nno ip icmp rate-limit unreach
able\nip tcp synwait 5\nno cdp log mismatch duplex\n!\nline con 0\n exec-timeout 0 0\n logging synchronous\n privilege level 15\n no login\nline aux 0\n exec-timeout 0 0\n logg
ing synchronous\n privilege level 15\n no login\n!\n!\nend\n', 'idlesleep': 30, 'auto_delete_disks': True, 'system_id': 'FTX0945W0MY', 'iomem': 5, 'nvram': 256, 'slot0': 'GT961
00-FE', 'disk0': 0, 'mmap': True, 'sparsemem': True, 'platform': 'c3745', 'exec_area': 64, 'idlepc': '0x60a81124', 'idlemax': 500, 'ram': 256, 'image': 'c3745-advipservicesk9-m
z.124-25d.bin', 'name': 'R1', 'disk1': 0}
2016-12-21 19:54:34 DEBUG project.py:385 Event received: {'event': {'memory_usage_percent': 25.0, 'cpu_usage_percent': 9.3}, 'action': 'ping'}
2016-12-21 19:54:34 DEBUG http_client.py:711 Decoding response from http://Hr1ASjH6L8QEQgQVm4YosITX6Q1SL1IZbqZy3KRVGMvIiuOkP9T3tOiD7AWbZsKL@127.0.0.1:3080/v1/projects/c710f714-
6430-49b4-b691-3376166af1eb/dynamips/vms response 201
2016-12-21 19:54:34 DEBUG http_client.py:718 {
    "auto_delete_disks": true,
    "aux": null,
    "clock_divisor": 8,
    "console": 5000,
    "disk0": 0,
    "disk1": 0,
    "dynamips_id": 1,

Update are taking longer than expected, you can try this repo for now:


sudo dnf copr enable athmane/gns3

sudo dnf update gns3-server gns3-gui


NB. Some Python libs required by GNS3 will be updated as well

gns3-server-1.5.3-2.fc26 gns3-gui-1.5.3-1.fc26 has been submitted as an update to Fedora 26. https://bodhi.fedoraproject.org/updates/FEDORA-2017-a69ac5c50d

gns3-gui-1.5.3-1.fc26, gns3-server-1.5.3-2.fc26 has been pushed to the Fedora 26 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2017-a69ac5c50d

gns3-gui-1.5.3-1.fc26, gns3-server-1.5.3-2.fc26 has been pushed to the Fedora 26 stable repository. If problems still persist, please make note of it in this bug report.