Seems the recipe is calling xrpl/2.1.0 does not exist.
Recipe 'xrpl/2.1.0' seems broken. It is possible that this recipe is not Conan 2.0 ready If the recipe comes from ConanCenter, report it at https://github.com/conan-io/conan-center-index/issues If it is your recipe, check if it is updated to 2.0