Solved :-1: error: cannot find -lPythonQt-Qt5-Python3.8_d
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I am trying to use
PythonQt
in myQt c++
application to embed python script in my application, I have build thePythonQt
successfully in my system and also tested all it's examples and they all are working perfectly but when I tried to use it with my application it gives me following error.:-1: error: cannot find -lPythonQt-Qt5-Python3.8_d
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@devillIsHeree said in :-1: error: cannot find -lPythonQt-Qt5-Python3.8_d:
-lPythonQt-Qt5-Python3.8_d
Purely at a guess, is that
_d
suffix for a debug library and you don't have that? Have a search on your disk, do you have any similarly-named library at all? -
What do you mean by similar named library? @JonB
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@devillIsHeree
Any file at all withPythonQt-Qt5-Python3.8
(without the_d
) in it, just to see what you have, e.g.- Linux:
locate 'PythonQt-Qt5-Python3.8'
- Windows:
dir/s/b C:\ | findstr "PythonQt-Qt5-Python3.8"
- Linux:
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@JonB I have ubuntu, I have run your provided command, It is showing me those results
/usr/lib/libPythonQt-Qt5-Python3.8.so /usr/lib/libPythonQt-Qt5-Python3.8.so.3 /usr/lib/libPythonQt-Qt5-Python3.8.so.3.2 /usr/lib/libPythonQt-Qt5-Python3.8.so.3.2.0
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@devillIsHeree
Which is what I kind of wondered might show up. But as I said your error message, assuming you copy/pasted it, reads:-lPythonQt-Qt5-Python3.8_d
If it read
-lPythonQt-Qt5-Python3.8
it would link against those libraries you do have. But it has that trailing_d
, so will not. Which I suspect is something to do with wanting a debug version of the library. Which you don't have.So have a look at wherever that line comes from. Is it supposed to be debug? Are you supposed to download/install a debug version of this
PythonQt
library? -
@JonB Actually I had install
PythonQt
to use thepython
embedding inQt c++
, This line is coming from the file
PythonQt.prf
. This is the link to that filehttps://github.com/MeVisLab/pythonqt/blob/master/build/PythonQt.prf
@JonB and I just watnt o use that
PythonQt
in my code, It isPythonQt
only which wanted to have that debug file I suppose but I don't know how to resolve this Please help -
@devillIsHeree said in :-1: error: cannot find -lPythonQt-Qt5-Python3.8_d:
https://github.com/MeVisLab/pythonqt/blob/master/build/PythonQt.prf
Yes, and I see that has:
# check if debug or release CONFIG(debug, debug|release) { DEBUG_EXT = _d } else { DEBUG_EXT = } ... unix: LIBS += -L$$DESTDIR/../lib -lPythonQt-Qt5-Python$${PYTHON_VERSION}$${DEBUG_EXT}
So either don't build for debug/get rid of using the
DEBUG_EXT = _d
under Linux at least, or somewhere (presumably) you can fetch (or build) the Linux debug libraries with_d
on them. -
Thanks @JonB sir, I just remove all the
DEBUG_ext
line
so now my all ```.prf.. files look like thatCONFIG(debug, debug|release) { DEBUG_EXT = } else { DEBUG_EXT = }
and they're compiling well. Thanks for the help