I am trying to convert a QGIS2 Plugin to QGIS3; specifically the Quickfinder plugin (I am aware of QGIS3 Locator and no I do not feel it provides the same or similar capability just thought I would get that out of the way). I used a Python 27 to Python3 converter to check the code and I changed some import module lines and qt4 to qt5 and resolved some initial errors.
The error I am getting now is
no module named 'core' C:...\qgis-ltr./python\qgis\utils.py line 335.
Can anyone help me understand this one and where I would start looking for to fix it?