Gwt compiling error: unable to find type

Question

I have an error compiling my app:

[INFO] Compiling module com.messagedna.web.Main
[INFO]    Finding entry point classes
[INFO]       [ERROR] Unable to find type 'com.messagedna.web.client.controller.Main'
[INFO]          [ERROR] Hint: Previous compiler errors may have made this type unavailable
[INFO]          [ERROR] Hint: Check the inheritance chain from your module; it may not be inheriting a required module or a module may not be adding its source path entries properly

I've tryed to find the solution in google but didn't figured out any. here is my gwt.xml file:

    <!DOCTYPE module PUBLIC "-//Google Inc.//DTD Google Web Toolkit 1.6//EN"
        "http://google-web-toolkit.googlecode.com/svn/releases/1.6/distro-source/core/src/gwt-module.dtd">
<module>

    <inherits name='com.extjs.gxt.ui.GXT'/>

    <inherits name="com.extjs.gxt.charts.Chart"/>

    <entry-point class='com.messagedna.web.client.controller.Main'/>

    <source path="com.messagedna"></source>


</module>

of course I have this class. Well, all necessary classes are in com.messagedna.web.client package. I use Idea — Nikitin Mikhail
– Nikitin Mikhail, Commented Apr 3, 2013 at 11:08

Adrian B. · Accepted Answer · 2013-04-03 11:03:36Z

3

The source-path in your module XML file does not look right. The path should point to a package (directory name) relatively to the GWT module root. Since your GWT module root is com.messagedna.web and the default source path is client, you can just drop the source tag from your configuration.

answered Apr 3, 2013 at 11:03

Adrian B.

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7 Comments

Nikitin Mikhail Over a year ago

This source tag is nesessary to point on one class which is out of the client package

Nikitin Mikhail Over a year ago

but I already have noticed that it is not the good idea and moved that class to client package and now have another problem:

Validating newly compiled units [INFO]       [ERROR] Errors in 'file:/home/mikhail/bzrrep/DLP/DLPServer/src/main/java/com/messagedna/web/client/util/Config.java' [INFO]          [ERROR] Line 8: The import java.util.concurrent cannot be resolved [INFO]          [ERROR] Line 9: The import java.util.concurrent cannot be resolved

and the same about couldn't find main class. When I remove all imports of Config class everything compiles but not works

Suresh Atta Over a year ago

Are you striking this issue ?? Answer of mine : stackoverflow.com/questions/15528500/java-timer-in-gwt/…

Suresh Atta Over a year ago

Yes you cannot use the class java.util.concurrent in GWT.

Adrian B. Over a year ago

You can not use java.util.concurrent in GWT. Try to use the Timer and DeferredCommand mechanism. See Programming Delayed Logic.

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user529543 · Accepted Answer · 2013-04-03 11:02:13Z

0

You have the entry point class, but that it isn't compiled, because you have a compiler or a "linker" error, and that is why is nagging the last case as it is not entry point.

[INFO] [ERROR] Hint: Previous compiler errors may have made this type unavailable [INFO] [ERROR] Hint: Check the inheritance chain from your module; it may not be inheriting a required module or a module may not be adding its source path entries properly

So check the other compiler errors or class-path included jars

answered Apr 3, 2013 at 11:02

user529543

Comments

Biswajit · Accepted Answer · 2013-04-03 11:01:44Z

-1

Add this line in module tag <inherits name="com.google.gwt.user.User" />

answered Apr 3, 2013 at 11:01

Biswajit

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