Fix v2ProPlus preprocess output dirs

app.py

@@ -434,6 +434,11 @@ def reset_preprocess_outputs(ctx: VersionContext):
             shutil.rmtree(directory)
 
 
+def ensure_preprocess_dirs(ctx: VersionContext):
+    for directory in [ctx.exp_dir / "3-bert", ctx.exp_dir / "4-cnhubert", ctx.exp_dir / "5-wav32k"]:
+        directory.mkdir(parents=True, exist_ok=True)
+
+
 def reset_gpt_training_outputs(ctx: VersionContext):
     if ctx.gpt_log_dir.exists():
         shutil.rmtree(ctx.gpt_log_dir)
@@ -560,6 +565,7 @@ def prepare_data_steps(logs, version):
     yield from download_dataset_steps(logs, version)
     reset_preprocess_outputs(ctx)
     sample_count, audio_count, unlisted = build_manifest(ctx)
+    ensure_preprocess_dirs(ctx)
     yield push(
         logs,
         f"训练清单已生成：metadata 可用样本 {sample_count} 条，音频总数 {audio_count} 个，未标注音频 {len(unlisted)} 个。",