CODEWITHSUNDEEP
javagoogle-app-enginemaven
Tyler
Tyler

Reputation: 2386

"Plugin not found for prefix app engine" when using maven

I am trying to run the command

mvn appengine:devserver

but it throws the following error

[ERROR] No plugin found for prefix 'appengine' in the current project and in the plugin groups 
 [org.apache.maven.plugins, org.codehaus.mojo] available from the repositories [local 
 (/Users/tylerrice/.m2/repository), central (https://repo.maven.apache.org/maven2)] -> [Help 1]

I have never used maven before all this code is from a development company we hired to write the majority of the backend so I am completely lost here. I visited the help page for this error here . I went through the list there and I can't find a pom.xml file either

Upvotes: 17

Views: 23720

Answers (4)

Brad
Brad

Reputation: 211

So I had this same error. When I tried to run mvn appengine:devserver for appengine I was getting this same error 

[ERROR] No plugin found for prefix 'appengine' in the current project and in the plugin groups [org.apache.maven.plugins, org.codehaus.mojo] available from the repositories [local (/Users/

I realized that I was up one directory too far, so when I was typing ls and hitting enter I could see my application. I simply needed to type cd [name of application] to go down one directory level to the application itself and it ran fine.

Upvotes: 21

Jigar Joshi
Jigar Joshi

Reputation: 240966

in your build life cycle you don't have this plugin defined you can verify it by

mvn help:effective-pom

and observe <build>

you need to let maven know what is this plugin and for that you need to add it to <build> like

<build>
    <plugins>
        <plugin>
            <groupId>com.google.appengine</groupId>
            <artifactId>appengine-maven-plugin</artifactId>
            <version>1.9.9</version>
        </plugin>
    </plugins>
</build>

See More

Upvotes: 11

Eli
Eli

Reputation: 768

I had the same problem, nothing helped me, I worked around it by running the app server from the appengine home with the location to my app:

C:\Downloads\appengine-java-sdk-1.9.24\appengine-java-sdk-1.9.24\bin>dev_appserver.cmd C:\projects\google_app_engine\guestbook_tutorial\guestbook\target\guestbook-1.0-SNAPSHOT\

Upvotes: 0

Shillz
Shillz

Reputation: 1

In your POM file the appengine VERSION needs to be explicitly specified. (Not sure why).

" com.google.appengine appengine-maven-plugin 1.9.15 "

Upvotes: 0

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