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Nuvyntra Labs

User guide

Troubleshooting

Existing-folder errors, DI registration, extra packages, and when to use maui-dev doctor.

Common symptoms

SymptomWhat to do
ClinicApp already existsinit is new projects only. The existing folder was not changed. Pick another name, or delete a leftover failed scaffold, then retry. For an existing MAUI app, cd into it and run nuvyn adopt. To refresh skills, run nuvyn update.
is already a Nuvyn projectadopt already ran (or init). Use nuvyn update.
is not a MAUI appadopt needs a UseMaui csproj in that folder.
Not a Nuvyn projectupdate / check need a .nuvyn/ folder from nuvyn init or nuvyn adopt.
Launch: unable to resolve MainPageViewModelAdd builder.Services.AddTransient<MainPageViewModel>().
Build: AddGeneratedViewModels / Plugin.Maui.MVVMExpress.GeneratedRemove that call and using. Register the view-model with AddTransient.
Two .UseMvvmExpress() callsKeep only the configured UseMvvmExpress(o => …) chain.
Agent added LocalStore / Syncfusion / RefitYou did not ask. Revert. Catalog first, UIKit first.
MAUI workload / TFM / permissions errorsRead the printed maui-dev doctor report. Do not re-run nuvyn init.
maui-dev doctor found issuesDoctor ran. Read the printed report. nuvyn init / adopt still succeeded. Unrecognized --no-update-check means the installed maui-dev is 1.2.1 — Nuvyn no longer forwards that flag.
Update prompt every few hoursExpected. Answer n or pass --no-update-check / NUVYNTRA_NO_UPDATE_CHECK=1 on nuvyn itself, not on the doctor hand-off.

Discussion

Comment on Nuvyn. The thread lives on this component's GitHub repository (nuvyntralabs/Nuvyn). Sign in with GitHub — Giscus uses Discussions, Utterances uses Issues.