setmainfont fails on not available font despite font being available

Question

I've the following IBM Plex font available in my font user directory, which is correctly identified when using fc-list:

fc-list | grep -i IBMPlexSans

produces:

/myPath/myPath/myUsername/.fonts/IBMPlexSans-SemiBoldItalic.ttf: IBM Plex Sans,IBM Plex Sans SemiBold:style=SemiBold Italic,Italic
/myPath/myPath/myUsername/.fonts/IBMPlexSans-Regular-Latin1.woff: IBM Plex Sans:style=Regular
/myPath/myPath/myUsername/.fonts/IBMPlexSans-Light.otf: IBM Plex Sans,IBM Plex Sans Light:style=Light,Regular
/myPath/myPath/myUsername/.fonts/IBMPlexSans-Regular-Latin3.woff: IBM Plex Sans:style=Regular
/myPath/myPath/myUsername/.fonts/IBMPlexSans-Regular-Latin2.woff: IBM Plex Sans:style=Regular
/myPath/myPath/myUsername/.fonts/IBMPlexSans-Thin.otf: IBM Plex Sans,IBM Plex Sans Thin:style=Thin,Regular
/myPath/myPath/myUsername/.fonts/IBMPlexSans-Medium.ttf: IBM Plex Sans,IBM Plex Sans Medium:style=Medium,Regular
/myPath/myPath/myUsername/.fonts/IBMPlexSans-SemiBold-Latin2.woff: IBM Plex Sans,IBM Plex Sans SemiBold:style=SemiBold,Regular
/myPath/myPath/myUsername/.fonts/IBMPlexSans-SemiBold-Latin3.woff: IBM Plex Sans,IBM Plex Sans SemiBold:style=SemiBold,Regular
/myPath/myPath/myUsername/.fonts/IBMPlexSans-SemiBold-Latin1.woff: IBM Plex Sans,IBM Plex Sans SemiBold:style=SemiBold,Regular
/myPath/myPath/myUsername/.fonts/IBMPlexSans-SemiBold.ttf: IBM Plex Sans,IBM Plex Sans SemiBold:style=SemiBold,Regular
/myPath/myPath/myUsername/.fonts/IBMPlexSans-Regular.ttf: IBM Plex Sans:style=Regular
/myPath/myPath/myUsername/.fonts/IBMPlexSans-SemiBoldItalic-Pi.woff: IBM Plex Sans,IBM Plex Sans SemiBold:style=SemiBold Italic,Italic
/myPath/myPath/myUsername/.fonts/IBMPlexSans-Text.ttf: IBM Plex Sans,IBM Plex Sans Text:style=Text,Regular
/myPath/myPath/myUsername/.fonts/IBMPlexSans-ExtraLightItalic.otf: IBM Plex Sans,IBM Plex Sans ExtraLight:style=ExtraLight Italic,Italic
/myPath/myPath/myUsername/.fonts/IBMPlexSans-Regular-Pi.woff: IBM Plex Sans:style=Regular
/myPath/myPath/myUsername/.fonts/IBMPlexSans-TextItalic.otf: IBM Plex Sans,IBM Plex Sans Text:style=Text Italic,Italic
/myPath/myPath/myUsername/.fonts/IBMPlexSans-Regular.otf: IBM Plex Sans:style=Regular
/myPath/myPath/myUsername/.fonts/IBMPlexSans-SemiBoldItalic-Latin1.woff: IBM Plex Sans,IBM Plex Sans SemiBold:style=SemiBold Italic,Italic
/myPath/myPath/myUsername/.fonts/IBMPlexSans-SemiBoldItalic-Latin3.woff: IBM Plex Sans,IBM Plex Sans SemiBold:style=SemiBold Italic,Italic
/myPath/myPath/myUsername/.fonts/IBMPlexSans-SemiBoldItalic-Latin2.woff: IBM Plex Sans,IBM Plex Sans SemiBold:style=SemiBold Italic,Italic
/myPath/myPath/myUsername/.fonts/IBMPlexSans-Bold.ttf: IBM Plex Sans:style=Bold
/myPath/myPath/myUsername/.fonts/IBMPlexSans-ExtraLightItalic.ttf: IBM Plex Sans,IBM Plex Sans ExtraLight:style=ExtraLight Italic,Italic
/myPath/myPath/myUsername/.fonts/IBMPlexSans-ExtraLight.ttf: IBM Plex Sans,IBM Plex Sans ExtraLight:style=ExtraLight,Regular
/myPath/myPath/myUsername/.fonts/IBMPlexSans-Text.otf: IBM Plex Sans,IBM Plex Sans Text:style=Text,Regular
/myPath/myPath/myUsername/.fonts/IBMPlexSans-TextItalic.ttf: IBM Plex Sans,IBM Plex Sans Text:style=Text Italic,Italic
/myPath/myPath/myUsername/.fonts/IBMPlexSans-LightItalic-Pi.woff: IBM Plex Sans,IBM Plex Sans Light:style=Light Italic,Italic
/myPath/myPath/myUsername/.fonts/IBMPlexSans-MediumItalic.ttf: IBM Plex Sans,IBM Plex Sans Medium:style=Medium Italic,Italic
/myPath/myPath/myUsername/.fonts/IBMPlexSans-LightItalic-Latin3.woff: IBM Plex Sans,IBM Plex Sans Light:style=Light Italic,Italic
/myPath/myPath/myUsername/.fonts/IBMPlexSans-LightItalic-Latin2.woff: IBM Plex Sans,IBM Plex Sans Light:style=Light Italic,Italic
/myPath/myPath/myUsername/.fonts/IBMPlexSans-LightItalic-Latin1.woff: IBM Plex Sans,IBM Plex Sans Light:style=Light Italic,Italic
/myPath/myPath/myUsername/.fonts/IBMPlexSans-Italic.ttf: IBM Plex Sans:style=Italic
/myPath/myPath/myUsername/.fonts/IBMPlexSans-BoldItalic.ttf: IBM Plex Sans:style=Bold Italic
/myPath/myPath/myUsername/.fonts/IBMPlexSans-LightItalic.otf: IBM Plex Sans,IBM Plex Sans Light:style=Light Italic,Italic
/myPath/myPath/myUsername/.fonts/IBMPlexSans-MediumItalic.otf: IBM Plex Sans,IBM Plex Sans Medium:style=Medium Italic,Italic
/myPath/myPath/myUsername/.fonts/IBMPlexSans-Light-Pi.woff: IBM Plex Sans,IBM Plex Sans Light:style=Light,Regular
/myPath/myPath/myUsername/.fonts/IBMPlexSans-Medium.otf: IBM Plex Sans,IBM Plex Sans Medium:style=Medium,Regular
/myPath/myPath/myUsername/.fonts/IBMPlexSans-ThinItalic.ttf: IBM Plex Sans,IBM Plex Sans Thin:style=Thin Italic,Italic
/myPath/myPath/myUsername/.fonts/IBMPlexSans-Italic.otf: IBM Plex Sans:style=Italic
/myPath/myPath/myUsername/.fonts/IBMPlexSans-Bold.otf: IBM Plex Sans:style=Bold
/myPath/myPath/myUsername/.fonts/IBMPlexSans-ExtraLight.otf: IBM Plex Sans,IBM Plex Sans ExtraLight:style=ExtraLight,Regular
/myPath/myPath/myUsername/.fonts/IBMPlexSans-Italic-Latin1.woff: IBM Plex Sans:style=Italic
/myPath/myPath/myUsername/.fonts/IBMPlexSans-Italic-Latin2.woff: IBM Plex Sans:style=Italic
/myPath/myPath/myUsername/.fonts/IBMPlexSans-Italic-Latin3.woff: IBM Plex Sans:style=Italic
/myPath/myPath/myUsername/.fonts/IBMPlexSans-SemiBoldItalic.otf: IBM Plex Sans,IBM Plex Sans SemiBold:style=SemiBold Italic,Italic
/myPath/myPath/myUsername/.fonts/IBMPlexSans-SemiBold-Pi.woff: IBM Plex Sans,IBM Plex Sans SemiBold:style=SemiBold,Regular
/myPath/myPath/myUsername/.fonts/IBMPlexSans-ThinItalic.otf: IBM Plex Sans,IBM Plex Sans Thin:style=Thin Italic,Italic
/myPath/myPath/myUsername/.fonts/IBMPlexSans-LightItalic.ttf: IBM Plex Sans,IBM Plex Sans Light:style=Light Italic,Italic
/myPath/myPath/myUsername/.fonts/IBMPlexSans-Light.ttf: IBM Plex Sans,IBM Plex Sans Light:style=Light,Regular
/myPath/myPath/myUsername/.fonts/IBMPlexSans-Light-Latin3.woff: IBM Plex Sans,IBM Plex Sans Light:style=Light,Regular
/myPath/myPath/myUsername/.fonts/IBMPlexSans-Light-Latin2.woff: IBM Plex Sans,IBM Plex Sans Light:style=Light,Regular
/myPath/myPath/myUsername/.fonts/IBMPlexSans-Thin.ttf: IBM Plex Sans,IBM Plex Sans Thin:style=Thin,Regular
/myPath/myPath/myUsername/.fonts/IBMPlexSans-BoldItalic.otf: IBM Plex Sans:style=Bold Italic
/myPath/myPath/myUsername/.fonts/IBMPlexSans-Light-Latin1.woff: IBM Plex Sans,IBM Plex Sans Light:style=Light,Regular
/myPath/myPath/myUsername/.fonts/IBMPlexSans-Italic-Pi.woff: IBM Plex Sans:style=Italic
/myPath/myPath/myUsername/.fonts/IBMPlexSans-SemiBold.otf: IBM Plex Sans,IBM Plex Sans SemiBold:style=SemiBold,Regular

Dcoument

In my *.tex document I'm using the following:

\setmainfont[Path=/absolutePathToUserAccount/.fonts/]{IBM Plex}

Error

Xelatex produces the following error:

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!
! fontspec error: "font-not-found"
!
! The font "IBMPlexSans-Regular-" cannot be found.
!
! See the fontspec documentation for further information.
!
! For immediate help type H <return>.
!...............................................

Notes

• I've tried multiple combinations IBM Plex, IBMPlex and so forth and I keep arriving at the same error

Answer 1

To expand on Sergei Golovans comment: Giving a Path argument explicitly requests to select the font by filename, so you have to use the filename IBMPlexSans-Regular.ttf instead (You can omit the extension .ttf, but I think this that just looks confusing)

On the other hand fc-list lists the font, so you can access it by fontname without specifying a Path= at all. Just write

\setmainfont{IBM Plex}