Extension “netspeedsimplified@prateekmedia.extension” does not exist

[georgerabus]

tried quick install and with make install

make install
#Remove old files(if any)
rm -rf ~/.local/share/gnome-shell/extensions/netspeedsimplified@prateekmedia.extension
#Create directory structure
mkdir -p ~/.local/share/gnome-shell/extensions/netspeedsimplified@prateekmedia.extension
mkdir -p ~/.local/share/gnome-shell/extensions/netspeedsimplified@prateekmedia.extension/schemas
#Copy compulsory files
cp extension.js metadata.json prefs.js stylesheet.css ~/.local/share/gnome-shell/extensions/netspeedsimplified@prateekmedia.extension
cp schemas/gschemas.compiled ~/.local/share/gnome-shell/extensions/netspeedsimplified@prateekmedia.extension/schemas
#Optional files
cp LICENSE ~/.local/share/gnome-shell/extensions/netspeedsimplified@prateekmedia.extension 2>/dev/null || true
cp README.md ~/.local/share/gnome-shell/extensions/netspeedsimplified@prateekmedia.extension 2>/dev/null || true
cp schemas/org.gnome.shell.extensions.netspeedsimplified.gschema.xml ~/.local/share/gnome-shell/extensions/netspeedsimplified@prateekmedia.extension/schemas 2>/dev/null || true
#Reloading shell; Sending SIGHUP signal to gnome-shell (equivalent to alt + f2 ; r ; enter)
busctl --user call org.gnome.Shell /org/gnome/Shell org.gnome.Shell Eval s 'Meta.restart("Restarting…")'
bs false ""
#Enabling Gnome extension.
sleep 5
gnome-extensions enable netspeedsimplified@prateekmedia.extension
Extension “netspeedsimplified@prateekmedia.extension” does not exist
make: *** [Makefile:22: install] Error 2