Google Web Toolkit compiling error, could not find GTWCompiler - gwt

Question

When I want to compile my GTW project I got this output in my console:
ant -f "C:\\Users\\Donatas\\Desktop\\b2b\\servlet" "-Dbrowser.context=C:\\Users\\Donatas\\Desktop\\b2b\\servlet" -DforceRedeploy=false -Ddirectory.deployment.supported=true -Dnb.internal.action.name=run run
init:
deps-module-jar:
deps-ear-jar:
deps-jar:
wsimport-init:
wsimport-client-ic:
files are up to date
wsimport-client-generate:
library-inclusion-in-archive:
library-inclusion-in-manifest:
compile:
compile-jsps:
GWT4NB https://github.com/gwt4nb/gwt4nb
GWT installation directory: C:\Users\Donatas\Desktop\b2b\lib\gwt-2.7.0
init:
do-gwt-compile-15:
GWT Compiling client-side code.
Error: Could not find or load main class com.google.gwt.dev.GWTCompiler
C:\Users\Donatas\Desktop\b2b\servlet\nbproject\build-gwt.xml:326: The following error occurred while executing this line:
C:\Users\Donatas\Desktop\b2b\servlet\nbproject\build-gwt.xml:356: Java returned: 1
My build-gtw.xml 326 line is:
<target name="-pre-dist" depends="-gwt-define-compile-unneeded">
<antcall target="-gwt-print-dir"/>
326: <antcall target="do-gwt-compile-15" />
<antcall target="do-gwt-compile-16" />
<antcall target="do-gwt-compile-17" />
<antcall target="do-gwt-compile-20" />
<antcall target="do-gwt-compile-23" />
<antcall target="do-gwt-compile-25" />
</target>
My build-gtw.xml 356 line is:
<target name="do-gwt-compile-15" if="gwt.version.15"
unless="gwt.compile.unneeded" depends="-init-gwt-dir">
<!-- You can override this property in the 'gwt.properties' file -->
<property name="gwt.compiler.output.style" value="OBFUSCATED"/>
<property name="gwt.compiler.logLevel" value="WARN"/>
<echo>GWT Compiling client-side code.</echo>
<java failonerror="true"
classname="com.google.gwt.dev.GWTCompiler" fork="true"
line 356: jvmargs="${gwt.compiler.jvmargs}">
<classpath>
<!--
GWT libraries are mentioned here explicitly so they are always
at the front of the class path.
-->
<pathelement path="${gwt.dir}/gwt-user.jar"/>
<fileset dir="${gwt.dir}">
<include name="gwt-dev-*.jar"/>
</fileset>
<pathelement path="${gwt.dir}/gwt-servlet.jar"/>
<pathelement path="${javac.classpath}"/>
<pathelement path="${src.dir}"/>
<pathelement path="${build.classes.dir}"/>
</classpath>
<arg value="-out"/>
<arg path="${build.web.dir}/"/>
<arg value="-style"/>
<arg value="${gwt.compiler.output.style}"/>
<arg value="-logLevel"/>
<arg value="${gwt.compiler.logLevel}"/>
<arg line="${gwt.compiler.args}"/>
<arg line="${gwt.module}"/>
</java>
<property name="gwt.output.dir" value="${gwt.module}"/>
<move todir="${build.web.dir}/${gwt.output.dir}">
<fileset dir="${build.web.dir}/${gwt.module}"/>
</move>
<touch file="${build.dir}/gwtc.run"/>
</target>
I know that GWTCompiler is deprecated, but how to change it if I change in Compiler I got error that my console arguments like [-out] is not recognized. So how to compile it. I'm using GTW 2.7 version.

Answer 1

It looks like a bug in GWT4NB. It should invoke do-gwt-compile-25 for GWT 2.7, not do-gwt-compile-15.
Try manually updating build-gwt.xml to add a 2.7 case to gwt.version.25: https://github.com/ksfreitas/gwt4nb/blob/1001c4fa8e9f6c0fed3c79ba19320b315737357f/trunk/src/org/netbeans/modules/gwt4nb/resources/build-gwt.xml#L139-L147
But it might not work, due to another bug (issue still open, don't know if it's been fixed or not, I don't use Netbeans): https://github.com/ksfreitas/gwt4nb/issues/32 (a quick grep in the code seems to indicate you could define gwt.version=2.6 or gwt.version=2.7 in nbproject/gwt.properties of your project, not sure if it'll work or be overwritten by the Netbeans plugin)

Answer 2

The compiler hasn't been called GWTCompiler since GWT 1.7 or so. Use com.google.gwt.dev.Compiler as the classname instead.

Answer 3

<!--
Check for GWT 2.5
-->
<condition property="gwt.version.25" value="true">
<or>
<equals arg1="${gwt.version}" arg2="2.5"/>
<equals arg1="${gwt.version}" arg2="2.6"/>
<equals arg1="${gwt.version}" arg2="2.7"/> --> add this line
</or>
</condition>
I added version 2.7 on build-gwt.xml and it works for me :D

Answer 4

Open build-gwt.xml
Then,
Try removing:
<antcall target="do-gwt-compile-15" />
Run, This should work