https://github.com/mikelolasagasti/revelation/issues/87
--- a/data/meson.build
+++ b/data/meson.build
@@ -59,7 +59,6 @@ rvl_appstreamdir = join_paths(rvl_datadir, 'metainfo')
 
 # Merge the translations with the appdata file
 i18n.merge_file(
-  appdata,
   input: appdata + '.in',
   output: appdata,
   po_dir: join_paths(meson.source_root(), 'po'),