I never had this error. Same code since long time.
Now if I do hugo mod get -u i get an error related to the theme declared in config.toml. Modules from module.toml seems to load well.
Note : I’m not 100% sure but i think it was ok on 0.123.0. But nothing sure.
[EDIT] the gethugothemes.com on all the lines is really strange on $ hugo mod graph command
$ hugo mod get -u
go: malformed module path "grandhotel": missing dot in first path element
Error: failed to get ["-d" "-u" "grandhotel"]: failed to execute 'go [get -d -u grandhotel]': failed to execute binary "go" with args [get -d -u grandhotel]: go: malformed module path "grandhotel": missing dot in first path element
*errors.errorString
config.toml
baseURL = "https://www.grandhotelkurhaus.com/"
timeout = "60s"
title = "Bienvenue - Grand Hotel & Kurhaus Arolla"
theme = ["grandhotel"]
...
module.toml
[hugoVersion]
extended = true
min = "0.110.0"
[[imports]]
path = "github.com/gohugoio/hugo-mod-bootstrap-scss/v5"
[[imports]]
path = "github.com/gethugothemes/hugo-modules/components/preloader"
[[imports]]
path = "github.com/gethugothemes/hugo-modules/components/render-link"
[[imports]]
path = "github.com/gethugothemes/hugo-modules/images"
[[imports]]
path = "github.com/gethugothemes/hugo-modules/shortcodes/button"
[[imports]]
path = "github.com/gethugothemes/hugo-modules/shortcodes/notice"
[[imports]]
path = "github.com/gethugothemes/hugo-modules/videos"
[[imports]]
path = "github.com/gethugothemes/hugo-modules/tab"
[[imports]]
path = "github.com/gethugothemes/hugo-modules/gallery-slider"
[[imports]]
path = "github.com/gethugothemes/hugo-modules/seo-tools/basic-seo"
[[imports]]
path = "github.com/gethugothemes/hugo-modules/seo-tools/site-verifications"
[[imports]]
path = "github.com/divinerites/plausible-hugo"
[[imports]]
path = "github.com/divinerites/divinerites-maps"
[[imports]]
path = "github.com/FortAwesome/Font-Awesome"
[[imports.mounts]]
source = "scss"
target = "assets/scss/fa-v6"
[[imports.mounts]]
source = "webfonts"
target = "static/webfonts"
$ go version
go version go1.20.4 darwin/amd64
$ hugo mod graph
gethugothemes.com github.com/gohugoio/hugo-mod-bootstrap-scss/v5@v5.20300.20200
github.com/gohugoio/hugo-mod-bootstrap-scss/v5@v5.20300.20200 github.com/twbs/bootstrap@v5.3.3+incompatible
github.com/gohugoio/hugo-mod-bootstrap-scss/v5@v5.20300.20200 github.com/gohugoio/hugo-mod-jslibs-dist/popperjs/v2@v2.21100.20000
gethugothemes.com github.com/gethugothemes/hugo-modules/components/preloader@v0.0.0-20240215103202-c030d4222242
gethugothemes.com github.com/gethugothemes/hugo-modules/components/render-link@v0.0.0-20240215103202-c030d4222242
gethugothemes.com github.com/gethugothemes/hugo-modules/images@v0.0.0-20240215103202-c030d4222242
gethugothemes.com github.com/gethugothemes/hugo-modules/shortcodes/button@v0.0.0-20240215103202-c030d4222242
gethugothemes.com github.com/gethugothemes/hugo-modules/shortcodes/notice@v0.0.0-20240215103202-c030d4222242
gethugothemes.com github.com/gethugothemes/hugo-modules/videos@v0.0.0-20240215103202-c030d4222242
gethugothemes.com github.com/gethugothemes/hugo-modules/tab@v0.0.0-20240215103202-c030d4222242
gethugothemes.com github.com/gethugothemes/hugo-modules/gallery-slider@v0.0.0-20240215103202-c030d4222242
gethugothemes.com github.com/gethugothemes/hugo-modules/seo-tools/basic-seo@v0.0.0-20240215103202-c030d4222242
gethugothemes.com github.com/gethugothemes/hugo-modules/seo-tools/site-verifications@v0.0.0-20240215103202-c030d4222242
gethugothemes.com github.com/divinerites/plausible-hugo@v1.19.4
gethugothemes.com github.com/divinerites/divinerites-maps@v1.1.6
gethugothemes.com github.com/FortAwesome/Font-Awesome@v0.0.0-20230802202706-f0c25837a3fe
gethugothemes.com grandhotel
grandhotel dr-seo-schema-org