diff --git a/README.md b/README.md
index 0d1caeba1da7f478c5475677c800f1b036f924b8..acc08fa3bb815e33d39b5121d172830211d5ec95 100644
--- a/README.md
+++ b/README.md
@@ -50,11 +50,11 @@ X2Paddle是飞桨生态下的模型转换工具，致力于帮助其它深度学
 
 ### 环境依赖
 - python >= 3.5  
-- paddlepaddle >= 2.0.0
+- paddlepaddle >= 2.2.2
 - tensorflow == 1.14 (如需转换TensorFlow模型)
 - onnx >= 1.6.0 (如需转换ONNX模型)
 - torch >= 1.5.0 (如需转换PyTorch模型)
-- paddlelite == 2.9.0 (如需一键转换成Paddle-Lite支持格式)
+- paddlelite >= 2.9.0 (如需一键转换成Paddle-Lite支持格式,推荐最新版本)
 
 ### pip安装(推荐）
 
diff --git a/x2paddle/convert.py b/x2paddle/convert.py
index dd0b28c343e198c561468cba4ce5b5a7aa55acc4..fad394129c65ea33e1a2bd0733da1665dcaad3c6 100644
--- a/x2paddle/convert.py
+++ b/x2paddle/convert.py
@@ -139,28 +139,33 @@ def tf2paddle(model_path,
         version = tf.__version__
         if version >= '2.0.0' or version < '1.0.0':
             logging.info(
-                "[ERROR] 1.0.0<=tensorflow<2.0.0 is required, and v1.14.0 is recommended"
+                "[ERROR] 1.0.0<=TensorFlow<2.0.0 is required, and v1.14.0 is recommended"
             )
             return
     except:
         logging.info(
-            "[ERROR] Tensorflow is not installed, use \"pip install tensorflow\"."
+            "[ERROR] TensorFlow is not installed, use \"pip install TensorFlow\"."
         )
         return
 
     from x2paddle.decoder.tf_decoder import TFDecoder
     from x2paddle.op_mapper.tf2paddle.tf_op_mapper import TFOpMapper
 
-    logging.info("Now translating model from tensorflow to paddle.")
+    logging.info("Now translating model from TensorFlow to Paddle.")
     model = TFDecoder(model_path, define_input_shape=define_input_shape)
     mapper = TFOpMapper(model)
     mapper.paddle_graph.build()
+    logging.info("Model optimizing ...")
     from x2paddle.optimizer.optimizer import GraphOptimizer
     graph_opt = GraphOptimizer(source_frame="tf")
     graph_opt.optimize(mapper.paddle_graph)
+    logging.info("Model optimized!")
     mapper.paddle_graph.gen_model(save_dir)
+    logging.info("Successfully exported Paddle static graph model!")
     if convert_to_lite:
+        logging.info("Now translating model from Paddle to Paddle Lite ...")
         convert2lite(save_dir, lite_valid_places, lite_model_type)
+        logging.info("Successfully exported Paddle Lite support model!")
 
 
 def caffe2paddle(proto_file,
@@ -187,10 +192,13 @@ def caffe2paddle(proto_file,
     from x2paddle.optimizer.optimizer import GraphOptimizer
     graph_opt = GraphOptimizer(source_frame="caffe")
     graph_opt.optimize(mapper.paddle_graph)
-    logging.info("Model optimized.")
+    logging.info("Model optimized!")
     mapper.paddle_graph.gen_model(save_dir)
+    logging.info("Successfully exported Paddle static graph model!")
     if convert_to_lite:
+        logging.info("Now translating model from Paddle to Paddle Lite ...")
         convert2lite(save_dir, lite_valid_places, lite_model_type)
+        logging.info("Successfully exported Paddle Lite support model!")
 
 
 def onnx2paddle(model_path,
@@ -224,8 +232,11 @@ def onnx2paddle(model_path,
     graph_opt.optimize(mapper.paddle_graph)
     logging.info("Model optimized.")
     mapper.paddle_graph.gen_model(save_dir)
+    logging.info("Successfully exported Paddle static graph model!")
     if convert_to_lite:
+        logging.info("Now translating model from Paddle to Paddle Lite ...")
         convert2lite(save_dir, lite_valid_places, lite_model_type)
+        logging.info("Successfully exported Paddle Lite support model!")
 
 
 def pytorch2paddle(module,
@@ -247,17 +258,17 @@ def pytorch2paddle(module,
         version_sum = int(v0) * 100 + int(v1) * 10 + int(v2)
         if version_sum < 150:
             logging.info(
-                "[ERROR] pytorch>=1.5.0 is required, 1.6.0 is the most recommended"
+                "[ERROR] PyTorch>=1.5.0 is required, 1.6.0 is the most recommended"
             )
             return
         if version_sum > 160:
-            logging.info("[WARNING] pytorch==1.6.0 is recommended")
+            logging.info("[WARNING] PyTorch==1.6.0 is recommended")
     except:
         logging.info(
-            "[ERROR] Pytorch is not installed, use \"pip install torch==1.6.0 torchvision\"."
+            "[ERROR] PyTorch is not installed, use \"pip install torch==1.6.0 torchvision\"."
         )
         return
-    logging.info("Now translating model from pytorch to paddle.")
+    logging.info("Now translating model from PyTorch to Paddle.")
 
     from x2paddle.decoder.pytorch_decoder import ScriptDecoder, TraceDecoder
     from x2paddle.op_mapper.pytorch2paddle.pytorch_op_mapper import PyTorchOpMapper
@@ -272,11 +283,14 @@ def pytorch2paddle(module,
     from x2paddle.optimizer.optimizer import GraphOptimizer
     graph_opt = GraphOptimizer(source_frame="pytorch", jit_type=jit_type)
     graph_opt.optimize(mapper.paddle_graph)
-    logging.info("Model optimized.")
+    logging.info("Model optimized!")
     mapper.paddle_graph.gen_model(
         save_dir, jit_type=jit_type, enable_code_optim=enable_code_optim)
+    logging.info("Successfully exported Paddle static graph model!")
     if convert_to_lite:
+        logging.info("Now translating model from Paddle to Paddle Lite ...")
         convert2lite(save_dir, lite_valid_places, lite_model_type)
+        logging.info("Successfully exported Paddle Lite support model!")
 
 
 def main():