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Cannot launch front/backend server in HelloWorld [message #1753805]

Fri, 10 February 2017 05:43

Eclipse User

Hi everyone,

i am beginner with scount and start using Scout by following the HelloWorld tutorial. Everything works fine until i tried to run "dev server.launch" and "dev ui.launch". Error occured in Eclipse with following message

Launch configuration [webapp] dev server references non-existing project helloworld.server.app.dev.

i did nothing else except following the tutorial. Before launching the server, i have build all the HellowWorld projects with "maven install". Did anyone have the same problem? Can someone help me here? Thanks in advance.

Best regards,

Yao

Attachment: Scout_HelloWorld.jpg
(Size: 322.04KB, Downloaded 175 times)

Re: Cannot launch front/backend server in HelloWorld [message #1753811 is a reply to message #1753805]

Fri, 10 February 2017 06:27

Eclipse User

When you start from Eclipse, no maven build is requested. It should just work.
From your screenshot I see the "helloworld.server.app.dev" project, so I can not explain why Eclipse says it is "non-existing"

Which version from Scout and from Eclipse are you using?
What is your OS?

Re: Cannot launch front/backend server in HelloWorld [message #1753814 is a reply to message #1753811]

Fri, 10 February 2017 06:31

Eclipse User

Thanks for your reply. I am using Eclipse for Scout Developer, version Neon.2 Release (4.6.2) in Windows 7.

Re: Cannot launch front/backend server in HelloWorld [message #1753816 is a reply to message #1753811]

Fri, 10 February 2017 06:45

Eclipse User

I tried to build another new scout project and get the following warning while building

[INFO] Generating project in Batch mode
[WARNING] Error reading archetype catalog http://repo.maven.apache.org/maven2
org.apache.maven.wagon.TransferFailedException: Error transferring file: connect timed out from http://repo.maven.apache.org/maven2
at io.takari.aether.wagon.OkHttpWagon.fillInputData(OkHttpWagon.java:89)
at org.apache.maven.wagon.StreamWagon.getInputStream(StreamWagon.java:116)
at org.apache.maven.wagon.StreamWagon.getIfNewer(StreamWagon.java:88)
at org.apache.maven.wagon.StreamWagon.get(StreamWagon.java:61)
at org.apache.maven.archetype.source.RemoteCatalogArchetypeDataSource.downloadCatalog(RemoteCatalogArchetypeDataSource.java:119)
at org.apache.maven.archetype.source.RemoteCatalogArchetypeDataSource.getArchetypeCatalog(RemoteCatalogArchetypeDataSource.java:87)
at org.apache.maven.archetype.DefaultArchetypeManager.getRemoteCatalog(DefaultArchetypeManager.java:216)
at org.apache.maven.archetype.DefaultArchetypeManager.getRemoteCatalog(DefaultArchetypeManager.java:205)
at org.apache.maven.archetype.ui.generation.DefaultArchetypeSelector.getArchetypesByCatalog(DefaultArchetypeSelector.java:200)
at org.apache.maven.archetype.ui.generation.DefaultArchetypeSelector.selectArchetype(DefaultArchetypeSelector.java:71)
at org.apache.maven.archetype.mojos.CreateProjectFromArchetypeMojo.execute(CreateProjectFromArchetypeMojo.java:181)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: java.net.SocketTimeoutException: connect timed out
at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at com.squareup.okhttp.internal.Platform.connectSocket(Platform.java:100)
at com.squareup.okhttp.Connection.connectSocket(Connection.java:196)
at com.squareup.okhttp.Connection.connect(Connection.java:172)
at com.squareup.okhttp.Connection.connectAndSetOwner(Connection.java:367)
at com.squareup.okhttp.OkHttpClient$1.connectAndSetOwner(OkHttpClient.java:128)
at com.squareup.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:328)
at com.squareup.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:245)
at com.squareup.okhttp.Call.getResponse(Call.java:267)
at com.squareup.okhttp.Call$ApplicationInterceptorChain.proceed(Call.java:224)
at com.squareup.okhttp.Call.getResponseWithInterceptorChain(Call.java:195)
at com.squareup.okhttp.Call.execute(Call.java:79)
at io.takari.aether.okhttp.OkHttpAetherClient.execute(OkHttpAetherClient.java:167)
at io.takari.aether.okhttp.OkHttpAetherClient.get(OkHttpAetherClient.java:113)
at io.takari.aether.wagon.OkHttpWagon.fillInputData(OkHttpWagon.java:58)
... 32 more
[WARNING] No archetype found in remote catalog. Defaulting to internal catalog
[WARNING] Archetype not found in any catalog. Falling back to central repository (http://repo.maven.apache.org/maven2).
[WARNING] Use -DarchetypeRepository=<your repository> if archetype's repository is elsewhere.

Can this be the reason?

Regards,

Yao

Re: Cannot launch front/backend server in HelloWorld [message #1753817 is a reply to message #1753814]

Fri, 10 February 2017 06:50

Eclipse User

I have a really similar setup and it works on my machine.

In your screenshot, I have noticed that the java nature is missing on your projects:

index.php/fa/28403/0/

Maybe you select them in the Package Explorer and press ALT+F5 to run the "Update Maven Project" function.

The "src" Folder should have an "source" icon.

Attachment: java_nature.png
(Size: 9.77KB, Downloaded 433 times)

Re: Cannot launch front/backend server in HelloWorld [message #1753819 is a reply to message #1753816]

Fri, 10 February 2017 07:14

Eclipse User

The Artifact used by Eclipse IDE for Scout project creation is here:

http://repo.maven.apache.org/maven2/org/eclipse/scout/archetypes/scout-helloworld-app/

Can you connect to maven central?

Re: Cannot launch front/backend server in HelloWorld [message #1753825 is a reply to message #1753817]

Fri, 10 February 2017 07:53

Eclipse User

yea, you are right. somehow is this scout project not considered as a java project. "Update Maven Project" did't help. Is there anythint wrong with java settings in eclipse scout? where can i see these settings? i have installed jdk 1.8 on my computer.

Re: Cannot launch front/backend server in HelloWorld [message #1753843 is a reply to message #1753825]

Fri, 10 February 2017 10:50

Eclipse User

I do not know why Eclipse is not regonizing your projets.

A long time ago, I have pushed the hello-world application created by Eclipse in a GitHub Repo:
https://github.com/jmini/scout-helloworld

In each project you should compare:
* the .project file (should contains a java nature and a java buildCommand)
* the .classpath file
* the *.prefs files under ".settings/"

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