Android (maven) recreates "gen" folder automatically.Can't run project

I have moved my project to maven开发者_开发百科. Firstly it appeared in eclipse as "java project". I have made it look like android project (to be able to build and deploy not just from terminal) but faced such a problem: It spams into console with the following message:

[2011-09-16 15:23:34 - *-maven] /*-maven/gen already exists but is not a source folder. Convert to a source folder or rename it.

It shouldn't be used at all. Because there is already /target/generated-source/r folder with a needed class. After deleting "gen" folder it is instantly recreated. Also this folder automatically appears in "Build-path" properties. Here is a screenshot of build-path property - http://d.pr/jMJ6 .

I still can use "mvn android:deploy" and then connect debugger manually but that is not comfortable and errors in eclipse drive me crazy.

I have already tried clean install, eclipse:eclipse, etc.

UPDATE: I thought that all problems were because of "gen" folder. The real problem was in wrong pom.xml configuration. I had

<configuration>
                <sdk>
                    <path>src</path>
                    <platform>8</platform>
                </sdk>

instead of

<configuration>
                <sdk>
                    <path></path>
                    <platform>8</platform>
                </sdk>

Use Intellij IDEA. It is more developer-friendly :) I needed just couple of minutes to run the project there. No additional plugins, no more headache