Update installation doc when protobuf version not updated (#494)

README.cn.md

@@ -79,7 +79,9 @@ visualdl --logdir=scratch_log --port=8080
 # 访问 http://127.0.0.1:8080
 ```
 
-如果以上步骤出现问题，很可能是因为python或pip不同版本或不同位置所致，以下安装方法能解决。
+如果出现`TypeError: __init__() got an unexpected keyword argument 'file'`, 是因为protobuf不是3.5以上，运行`pip install --upgrade protobuf`就能解决。
+
+如果以上步骤还有出现其他问题，很可能是因为python或pip不同版本或不同位置所致，以下安装方法能解决。
 
 ## 使用 virtualenv 安装
 

README.md

@@ -84,7 +84,9 @@ visualdl --logdir=scratch_log --port=8080
 # visit http://127.0.0.1:8080
 ```
 
-If you run into issues in above steps, it could be error caused by environmental issues by different python or pip versions.
+If you encounter the error `TypeError: __init__() got an unexpected keyword argument 'file'`, that is due to protobuf version is not 3.5+，simply run `pip install --upgrade protobuf` will fix the issue.
+
+If you run into any other issues in above steps, it could be error caused by environmental issues by different python or pip versions.
 Following installation methods might fix the issues.
 
 ## Install with Virtualenv

demo/paddle/TUTORIAL_CN.md

@@ -9,7 +9,8 @@
 
 完整的演示程序可以在[这里](https://github.com/PaddlePaddle/VisualDL/blob/develop/demo/paddle/paddle_cifar10.py)下载。
 
-这程序是在Paddle v2 0.11版本上开发。可以用```pip install paddlepaddle``` 或 ```docker pull paddlepaddle/paddle:0.11.0```来安装。注意Paddle还没支持Python3。
+这程序是在Paddle v2 0.11版本上开发。可以用```pip install paddlepaddle``` 或 ```docker pull paddlepaddle/paddle:0.11.0```来安装。注意Paddle还没支持Python3和protobuf需要3.5+。
+如果出现`TypeError: __init__() got an unexpected keyword argument 'file'`, 是因为protobuf不是3.5以上，运行`pip install --upgrade protobuf`就能解决。
 安装详细流程请看[这里](http://paddlepaddle.org/docs/0.11.0/documentation/cn/getstarted/build_and_install/index_en.html)
 
 首先我们创建Loggers来记录不同种类的数据：

demo/paddle/TUTORIAL_EN.md

@@ -8,8 +8,9 @@ This example is the modification with fluid PaddlePaddle's API from this officia
 
 The full demonstration code can be downloaded in [here](https://github.com/PaddlePaddle/VisualDL/blob/develop/demo/paddle/paddle_cifar10.py).
 
-The script is based on Paddle v2 0.11. You can do ```pip install paddlepaddle``` or ```docker pull paddlepaddle/paddle:0.11.0```. Notice Paddle does not support Python3 yet and protobuf version needs to be 3.5+. For details, please
-follow Paddle's installation guide [here](http://paddlepaddle.org/docs/0.11.0/documentation/en/getstarted/build_and_install/index_en.html)
+The script is based on Paddle v2 0.11. You can do ```pip install paddlepaddle``` or ```docker pull paddlepaddle/paddle:0.11.0```. Notice Paddle does not support Python3 yet and protobuf version needs to be 3.5+.
+If you encounter the error `TypeError: __init__() got an unexpected keyword argument 'file'`, that is due to protobuf version is not 3.5+，simply run `pip install --upgrade protobuf` will fix the issue.
+For details, please follow Paddle's installation guide [here](http://paddlepaddle.org/docs/0.11.0/documentation/en/getstarted/build_and_install/index_en.html)
 
 
 First we initialize Loggers for different types of record as follows:

docs/getting_started/installation_cn.md

@@ -14,7 +14,9 @@ visualdl --logdir=scratch_log --port=8080
 # visit http://127.0.0.1:8080
 ```
 
-如果以上步骤出现问题，很可能是因为python或pip不同版本或不同位置所致，以下安装方法能解决。
+如果出现`TypeError: __init__() got an unexpected keyword argument 'file'`, 是因为protobuf不是3.5以上，运行`pip install --upgrade protobuf`就能解决。
+
+如果以上步骤还有出现其他问题，很可能是因为python或pip不同版本或不同位置所致，以下安装方法能解决。
 
 ## 使用 virtualenv 安装
 

docs/getting_started/installation_en.md

@@ -13,7 +13,9 @@ visualdl --logdir=scratch_log --port=8080
 # visit http://127.0.0.1:8080
 ```
 
-If you run into issues in above steps, it could be error caused by environmental issues by different python or pip versions.
+If you encounter the error `TypeError: __init__() got an unexpected keyword argument 'file'`, that is due to protobuf version is not 3.5+，simply run `pip install --upgrade protobuf` will fix the issue.
+
+If you run into any other issues in above steps, it could be error caused by environmental issues by different python or pip versions.
 Following installation methods might fix the issues.
 
 ## Install with Virtualenv