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Tried to deploy a generator with just a runnable rule .. got an exception: java.lang.NullPointerException at java.util.Arrays$ArrayList.<init>(Arrays.java:3357) at java.util.Arrays.asList(Arrays.java:3343) at org.eclipse.tigerstripe.workbench.internal.core.project.pluggable.PluggablePluginProjectPackager.packageUpProject(PluggablePluginProjectPackager.java:119) at org.eclipse.tigerstripe.workbench.project.GeneratorDeploymentHelper.deploy(GeneratorDeploymentHelper.java:65) at org.eclipse.tigerstripe.workbench.ui.internal.utils.GeneratorDeploymentUIHelper.deploy(GeneratorDeploymentUIHelper.java:44) at org.eclipse.tigerstripe.workbench.ui.internal.editors.pluginDescriptor.header.PluginDebugSection$1$1.run(PluginDebugSection.java:125) at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121) Code looked like it was assuming the presence of a template directory/files... Added it and the problem dissappeared.
I'm unable to reproduce this issue with latest version of Tigerstripe. I tried with all three rule types. If you're still having issues, please attach your generator project.