Comment 7 for bug 1803021

Thanks! That's much better. =) As a minimal workaround, can you replace the text

    Failed to load the requested file /usr/share/inkscape/tutorials/tutorial-basic.svg

with check for file presence and the following text if check failed

    Inkscape Tutorials are shipped as a separate package, which
    saves 50Mb of Inkscape package size. Install `inkscape-tutorials`
    from Software Center or use `apt` from terminal:

       sudo apt install inkscape-tutorials

https://packages.ubuntu.com/cosmic/graphics/inkscape-tutorials