GDB is not running for gdbgui 0.8 and later

I've installed gdbgui-0.13. gdbgui opens ok, but there isn't any prompt in the gdb console. I think that gdb isn't running.
When i try to load a binary i have this message:

_No gdb response received after 10 seconds.

Possible reasons include:

1) gdbgui, gdb, or the debugged process is not running.

2) gdb or the inferior process is busy running and needs to be interrupted (press the pause button up top).

3) Something is just taking a long time to finish and respond back to this browser window, in which case you can just keep waiting._

I have tried with previous versions (0.12, 0.11.3 and 0.8) and i have obtained the same results. But version 0.7.9.5 works fine.

* OS: "openSUSE Tumbleweed" VERSION="20180703"
* gdbgui version (`gdbgui -v`): 0.13.0.0
* gdb version (`gdb -v`): GNU gdb (GDB) 8.0
* browser [e.g. chrome, safari]: chrome and firefox
* python packages (`pip freeze`):

alabaster==0.7.11
apparmor==2.13
appdirs==1.4.3
asn1crypto==0.24.0
attrs==18.1.0
Automat==0.6.0
Babel==2.6.0
backcall==0.1.0
backports-abc==0.5
bcrypt==3.1.4
bleach==2.1.3
Brlapi==0.6.7
cairocffi==0.8.1
certifi==2018.4.16
cffi==1.11.5
chardet==3.0.4
chrome-gnome-shell==0.0.0
click==6.7
cmdln==2.0.0
colorama==0.3.9
configobj==5.0.6
constantly==15.1.0
coverage==4.5.1
cryptography==2.2.2
cssselect==1.0.3
cupshelpers==1.0
cycler==0.10.0
decorator==4.3.0
docrepr==0.1.0
docutils==0.14
ecdsa==0.13
entrypoints==0.2.3
enum-compat==0.0.2
eventlet==0.21.0
Flask==0.12.2
Flask-Compress==1.4.0
Flask-SocketIO==2.9.2
Fplot==0.1.1
gdbgui==0.13.0.0
Genshi==0.7
gevent==1.3.3
greenlet==0.4.13
html5lib==1.0.1
hyperlink==17.2.1
idna==2.7
imagesize==1.0.0
incremental==17.5.0
ipykernel==4.8.2
ipyparallel==6.2.1
ipython==6.4.0
ipython-genutils==0.2.0
ipywidgets==7.2.1
isc==2.0
itsdangerous==0.24
javapackages==5.3.0.dev1
jedi==0.12.1
Jinja2==2.10
jsonschema==2.6.0
jupyter==1.0.0
jupyter-client==5.2.3
jupyter-console==5.2.0
jupyter-core==4.4.0
keyring==10.5.0
kiwisolver==1.0.1
LibAppArmor==2.13
louis==3.6.0
lxml==4.2.1
MarkupSafe==1.0
matplotlib==2.2.2
meld==3.19.0
mistune==0.8.3
mpi4py==3.0.0
nbconvert==5.3.1
nbformat==4.4.0
ndg-httpsclient==0.4.0
nose==1.3.7
notebook==5.5.0
numpy==1.14.5
olefile==0.44
packaging==17.1
pandocfilters==1.4.2
paramiko==2.4.1
parso==0.3.1
path.py==10.3.1
pexpect==4.6.0
pickleshare==0.7.4
Pillow==5.2.0
ply==3.11
prompt-toolkit==1.0.15
psutil==5.4.6
ptyprocess==0.5.2
py==1.5.3
pyasn1==0.4.3
pyasn1-modules==0.2.2
pycairo==1.15.1
pycodestyle==2.4.0
pycparser==2.18
pycryptodome==3.6.3
pycryptodomex==3.4.7
pycups==1.9.73
pycurl==7.43.0.2
pygdbmi==0.8.3.0
Pygments==2.2.0
pygobject==3.28.3
pymongo==3.7.0
PyNaCl==1.2.1
pyOpenSSL==17.5.0
pyparsing==2.2.0
pypugjs==4.2.2
pyserial==3.4
PySide==1.2.4
pysmbc==1.0.15.8
pysmi==0.2.2
pysnmp==4.4.2
PySocks==1.6.8
python-dateutil==2.6.1
python-engineio==1.7.0
python-socketio==1.8.0
pytz==2018.5
pyxdg==0.26
pyzmq==17.0.0
qtconsole==4.3.1
requests==2.18.4
scipy==0.19.0
SecretStorage==2.3.1
Send2Trash==1.4.1
service-identity==16.0.0
setproctitle==1.1.10
simplegeneric==0.8.1
simplejson==3.16.0
six==1.11.0
slip==0.6.5
slip.dbus==0.6.5
snowballstemmer==1.2.1
Sphinx==1.7.4
sphinx-rtd-theme==0.4.0
sphinxcontrib-websupport==1.0.1
SQLAlchemy==1.2.10
terminado==0.8.1
testpath==0.3.1
tornado==4.5.3
traitlets==4.3.2
Twisted==18.4.0
urllib3==1.22
wcwidth==0.1.7
webencodings==0.5.1
Werkzeug==0.12.2
Whoosh==2.7.4
widgetsnbextension==3.2.1
xcffib==0.5.1
zope.interface==4.4.2