Babel throws when an import attribute such as import abc from "./abc.json" with { type: "json" } or await import("./abc.json", { assert: { type: "json" } }) is present in a source file; it suggests using @babel/plugin-syntax-import-attributes to resolve the issue.

note: to enable parsing the deprecated import abc from "./abs.json" assert { type: "json" } syntax, the plugin's deprecatedAssertSyntax option must be true (default: false).