sudo apt-get update && sudo apt-get install build-essential
should fix your issue

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update: While installing on debian 9 I have done all the steps needed, even the optional, but after
$ python setup.py install
I get the same error:

CMake Error at CMakeLists.txt:2 (project): No CMAKE_CXX_COMPILER could be found.

Tell CMake where to find the compiler by setting either the environment variable "CXX" or the CMake cache entry CMAKE_CXX_COMPILER to the full path to the compiler, or to the compiler name if it is in the PATH.

-- Configuring incomplete, errors occurred!
See also "/tmp/easy_install-ZNfhmT/PySide-1.2.4/pyside_build/py2.7-qt4.8.7-64bit-release/shiboken/CMakeFiles/CMakeOutput.log".
See also "/tmp/easy_install-ZNfhmT/PySide-1.2.4/pyside_build/py2.7-qt4.8.7-64bit-release/shiboken/CMakeFiles/CMakeError.log".
error: Setup script exited with error: Error configuring shiboken

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apt-get install build-essential

Reading package lists... Done
Building dependency tree
Reading state information... Done
build-essential is already the newest version (12.3).
build-essential set to manually installed.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

from everpad.

it did install, and it took more than 5 minutes...wow
now it won't launch. i type 'everpad' and there is nothing there, on the start menu there is only the option 'run everpad' which leads to nothing, at least i know installation was ok
launching 'everpad' while on root terminal gives some code sequence i didn't keep track.
tried to uninstall, don't know how, just deleted the files and now running 'everpad' on terminal will give this:
Traceback (most recent call last):
File "/usr/local/bin/everpad", line 11, in
load_entry_point('everpad==2.5.dev0', 'gui_scripts', 'everpad')()
File "/usr/lib/python2.7/dist-packages/pkg_resources/init.py", line 561, in load_entry_point
return get_distribution(dist).load_entry_point(group, name)
File "/usr/lib/python2.7/dist-packages/pkg_resources/init.py", line 2631, in load_entry_point
return ep.load()
File "/usr/lib/python2.7/dist-packages/pkg_resources/init.py", line 2291, in load
return self.resolve()
File "/usr/lib/python2.7/dist-packages/pkg_resources/init.py", line 2297, in resolve
module = import(self.module_name, fromlist=['name'], level=0)
File "build/bdist.linux-x86_64/egg/everpad/pad/indicator.py", line 8, in
File "build/bdist.linux-x86_64/egg/everpad/pad/editor/init.py", line 6, in
File "build/bdist.linux-x86_64/egg/everpad/interface/editor.py", line 125, in
ImportError: cannot import name QtWebKit

Thank you for your time. I just want to uninstall now..

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