Mounting a directory from the host in boot2docker for Windows

 docker run -d --name abe -v $APPDATA/Bitcoin:/datadir poliver/bitcoin-abe

I get the error:
invalid value "C:\\Users\\someone\\AppData\\Roaming/Bitcoin:/datadir"
for flag -v: \Users\someone\AppData\Roaming/Bitcoin:/datadir 
is not an absolute path 
See 'c:\Program Files\Boot2DockeForWindows\docker.exe run --help'.

I get the same results when I call it these ways:
$ docker run -d --name abe -v "$APPDATA/Bitcoin":/datadir poliver/bitcoin-abe
$ docker run -d --name abe -v "/c/users/someone/AppData/Roaming/Bitcoin":/datadir poliver/bitcoin-abe
$ docker run -d --name abe -v ~/AppData/Roaming/Bitcoin:/datadir poliver/bitcoin-abe
Ans.

If you want to mount the $APPDATA on your Windows host machine to /datadir on the docker container, instead of the below command:
docker run -d --name abe -v $APPDATA/Bitcoin:/datadir poliver/bitcoin-abe

You can issue:
docker run -d --name abe -v //c/Users/YOUR_USER_NAME/$APPDATA/Bitcoin:/datadir poliver/bitcoin-abe

//c/Users/PATH_TO_DIR is the key here for Windows directory

Your $APPDATA Directory MUST reside on the /c/Users/Your_User_Name directory and it cannotreside on other places. (e.g. D:/$APPDATA on the D partition.)



link 

Maven : Return code is: 503 , ReasonPhrase:Service Unavailable

 [ERROR] Plugin org.apache.maven.plugins:maven-clean-plugin:2.5 or one of its dependencies could not be resolved: Failed to read artifact descriptor for o rg.apache.maven.plugins:maven-clean-plugin:jar:2.5: Could not transfer artifact org.apache.maven.plugins:maven-clean-plugin:pom:2.5 from/to internal (http://localhost:8081/artifactory/libs-release-local): Failed to transfer file: http://localhost:8081/artifactory/libs-release-local/org/apache/maven/plugins/maven-clean-plugin/2.5/maven-clean-plugin-2.5.pom. Return code is: 503 , ReasonPhrase:Service Unavailable. -> [Help 1]  

settings.xml

 <settings xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0" xsi:schemalocation="http://maven.apache.org/POM/4.0.0   
            http://maven.apache.org/xsd/settings-1.0.0.xsd">  
   
 <proxies>  
    <proxy>  
    <id>optional</id>  
    <active>true</active>  
    <protocol>http</protocol>  
     <username>proxy_user</username>  
    <password>proxy_password</password>  
    <host>proxy_name</host>  
    <port>8080</port>  
    </proxy>  
 </proxies>    
   
 <mirrors>  
   <mirror>  
    <id>internal</id>  
    <url>http://localhost:8081/artifactory/libs-release-local</url>  
    <mirrorof>*</mirrorof>  
   </mirror>  
 </mirrors>  
 </settings>   

The problem is with your proxy settings. The current settings will cause all requests to localhost to go through the proxy which will not be able to connect with localhost and hence returns a 503.

To solve this issue add the following to the proxy settings in the settings.xml file:

 <nonproxyhosts>localhost</nonproxyhosts>  

Cannot change version of project facet Dynamic Web Module to 3.0

เมื่อสร้าง web project defalut ใน eclipse จะได้ servlet 2.3
ถ้าเราแก้ web.xml เอง


จะทำให้ เกิด
Cannot change version of project facet Dynamic Web Module to 3.0.
วิธีแก้ไขคือ
1. คลิ๊กขวาที่ eclipse project เลือก properties -> Project facets -> เอาติ๊กถูกที่ Dynamic Web Module ออกกด apply

2. คลิ๊กขวาที่ eclipse project เลือก maven -> Update Project