Merge pull request #2330 from coqui-ai/update-missing-checkpoint-path-generate-scorer-pkg-cpp

Updated missing checkpoint path error message

Author: wasertech

native_client/generate_scorer_package.cpp

@@ -51,7 +51,17 @@ create_package(absl::optional<string> checkpoint_path,
     }
 
     if (!force_bytes_output_mode.value() && !checkpoint_path.has_value()) {
-        cerr << "No --alphabet file specified, not using bytes output mode, can't continue.\n";
+        cerr << "No --checkpoint file specified, not using bytes output mode, can't continue."
+             << "\nCheckpoint path must contains an alphabet."
+             << "\nStart by creating an alphabet for your models using coqui_stt_training.util.check_characters if needed.\n"
+             << "\n    python -m coqui_stt_training.util.check_characters \\"
+             << "\n				--csv-files ... \\"
+             << "\n				--alphabet-format | grep -v '^#' | sort -n > models/alphabet.txt\n"
+             << "\nThis will create an alphabet models/alphabet.txt.\n"
+             << "Now rerun this script by giving models/ as the checkpoint path.\n"
+             << "\n    generate_scorer_package  \\"
+             << "\n		--checkpoint models/ \\"
+             << "\n		...\n";
         return 1;
     }