Tycho & Eclipse-PlatformFilter - eclipse

Question

I'm using tycho to automatically build my RCP application (actually, I've adopted the structure reported in one of the examples). I have to say that it works very well and I'm able to support all the three architectures I need (linux x86, linux x86_64, win32 x86).
Additionally, part of the application requires some native code, which I provide with fragments (see my previous question). Each fragment is tailored for a particular architecture, hence specify it in the fragment's MANIFEST:
Eclipse-PlatformFilter: (& (osgi.os=linux) (osgi.arch=x86_64))
However, if I run mvn install I obtain:
[ERROR] Internal error: java.lang.RuntimeException: "Problems resolving provisioning plan.": ["tycho.jni.linux 1.0.0.qualifier cannot be installed in this environment because its filter is not applicable."] -> [Help 1]
org.apache.maven.InternalErrorException: Internal error: java.lang.RuntimeException: "Problems resolving provisioning plan.": ["tycho.jni.linux 1.0.0.qualifier cannot be installed in this environment because its filter is not applicable."]
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:168)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
Caused by: java.lang.RuntimeException: "Problems resolving provisioning plan.": ["tycho.jni.linux 1.0.0.qualifier cannot be installed in this environment because its filter is not applicable."]
at org.eclipse.tycho.p2.impl.resolver.ProjectorResolutionStrategy.resolve(ProjectorResolutionStrategy.java:84)
at org.eclipse.tycho.p2.impl.resolver.P2ResolverImpl.resolveProject(P2ResolverImpl.java:324)
at org.eclipse.tycho.p2.impl.resolver.P2ResolverImpl.resolveProject(P2ResolverImpl.java:293)
at org.eclipse.tycho.p2.facade.P2TargetPlatformResolver.doResolvePlatform(P2TargetPlatformResolver.java:389)
at org.eclipse.tycho.p2.facade.P2TargetPlatformResolver.resolvePlatform(P2TargetPlatformResolver.java:150)
at org.eclipse.tycho.core.resolver.DefaultTychoDependencyResolver.resolveProject(DefaultTychoDependencyResolver.java:90)
at org.eclipse.tycho.core.maven.TychoMavenLifecycleParticipant.afterProjectsRead(TychoMavenLifecycleParticipant.java:91)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:273)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
... 11 more
Caused by: org.eclipse.core.runtime.CoreException: Problems resolving provisioning plan.
at org.eclipse.tycho.p2.impl.resolver.ProjectorResolutionStrategy.resolve(ProjectorResolutionStrategy.java:85)
... 19 more
Note that the same project without the Eclipse-PlatformFilter compiles correctly... what I'm missing?

Answer 1

Try narrowing down the environments of your fragment's pom.xml to just the one matching the Eclipse-PlatformFilter:
<build>
<plugins>
<plugin>
<groupId>org.eclipse.tycho</groupId>
<artifactId>target-platform-configuration</artifactId>
<version>${tycho-version}</version>
<configuration>
<environments>
<environment>
<os>linux</os>
<ws>gtk</ws>
<arch>x86_64</arch>
</environment>
</environments>
</configuration>
</plugin>
</plugins>
</build>