I have a Google Cloud project that I want to delete.
However, when I press delete and enter the project id, I get the following error messages:
The project
this sounds, as if you wouldn't have paid on time; according to the definition of a lien
:
a right to keep possession of property belonging to another person
until a debt owed by that person is discharged.
paying the outstanding debt is required, which would subsequently remove the lien.
until then, your project will be held hostage ...
the other answers refer to self-created liens; see Protecting Projects from Accidental Deletion with Liens; while in case Google's accounting has filed them, because of said reasons, you won't be able to remove them by yourself, unless complying with the invoices. you could check for the concrete reason
why the lien had been filed, with gcloud alpha resource-manager liens list
.