NPE when trying to build a docker image

[fcampagne]

Clicking on the Build image button yields this exception (tested in 2018.1.1 with version 1.8.0 of the NW plugin):
null
java.lang.NullPointerException
at jetbrains.mps.lang.smodel.generator.smodelAdapter.SModelOperations.getModuleStub(SModelOperations.java:128)
at org.campagnelab.docker.behavior.ExecuteDockerCommands.getMessageViewTool(ExecuteDockerCommands.java:675)
at org.campagnelab.docker.behavior.ExecuteDockerCommands.log(ExecuteDockerCommands.java:648)
at org.campagnelab.docker.behavior.ExecuteDockerCommands.build(ExecuteDockerCommands.java:553)
at org.campagnelab.docker.behavior.Dockerfile__BehaviorDescriptor.build_id5BbChSjHB1p(Dockerfile__BehaviorDescriptor.java:67)
at org.campagnelab.docker.behavior.Dockerfile__BehaviorDescriptor.invokeSpecial0(Dockerfile__BehaviorDescriptor.java:117)
at jetbrains.mps.core.aspects.behaviour.BaseBHDescriptor.invokeSpecial(BaseBHDescriptor.java:346)
at jetbrains.mps.core.aspects.behaviour.BaseBHDescriptor.invokeNonVirtualCommon(BaseBHDescriptor.java:294)
at jetbrains.mps.core.aspects.behaviour.BaseBHDescriptor.invokeNonVirtual(BaseBHDescriptor.java:270)
at jetbrains.mps.core.aspects.behaviour.BaseBHDescriptor.invoke(BaseBHDescriptor.java:231)
at jetbrains.mps.core.aspects.behaviour.SMethodImpl.invoke0(SMethodImpl.java:151)
at jetbrains.mps.core.aspects.behaviour.SMethodImpl.invoke(SMethodImpl.java:126)
at org.campagnelab.docker.editor.Dockerfile_EditorBuilder_a$1.process(Dockerfile_EditorBuilder_a.java:126)
at org.campagnelab.ui.code.Swing.ButtonCallback.run(Unknown Source)
at jetbrains.mps.smodel.WorkbenchModelAccess$CommandRunnable.lambda$run$0(WorkbenchModelAccess.java:449)
at jetbrains.mps.smodel.WriteActionDispatcher.run(WriteActionDispatcher.java:39)
at jetbrains.mps.smodel.WorkbenchModelAccess.lambda$runWriteAction$1(WorkbenchModelAccess.java:105)
at com.intellij.openapi.application.impl.ApplicationImpl.runWriteAction(ApplicationImpl.java:1010)
at jetbrains.mps.smodel.WorkbenchModelAccess.runWriteAction(WorkbenchModelAccess.java:113)
at jetbrains.mps.smodel.WorkbenchModelAccess$CommandRunnable.run(WorkbenchModelAccess.java:446)
at com.intellij.openapi.command.impl.CoreCommandProcessor.executeCommand(CoreCommandProcessor.java:137)
at com.intellij.openapi.command.impl.CoreCommandProcessor.executeCommand(CoreCommandProcessor.java:95)
at com.intellij.openapi.command.impl.CoreCommandProcessor.executeCommand(CoreCommandProcessor.java:85)
at jetbrains.mps.smodel.WorkbenchModelAccess.runWriteActionInCommand(WorkbenchModelAccess.java:311)
at jetbrains.mps.smodel.WorkbenchModelAccess.executeCommand(WorkbenchModelAccess.java:307)
at jetbrains.mps.project.ProjectModelAccess.executeCommand(ProjectModelAccess.java:43)
at org.campagnelab.ui.code.Swing.Button$1.actionPerformed(Unknown Source)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.Component.processMouseEvent(Component.java:6541)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3325)
at java.awt.Component.processEvent(Component.java:6306)
at java.awt.Container.processEvent(Container.java:2237)
at java.awt.Component.dispatchEventImpl(Component.java:4897)
at java.awt.Container.dispatchEventImpl(Container.java:2295)
at java.awt.Component.dispatchEvent(Component.java:4719)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4889)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4526)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4467)
at java.awt.Container.dispatchEventImpl(Container.java:2281)
at java.awt.Window.dispatchEventImpl(Window.java:2746)
at java.awt.Component.dispatchEvent(Component.java:4719)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:764)
at java.awt.EventQueue.access$500(EventQueue.java:98)
at java.awt.EventQueue$3.run(EventQueue.java:715)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:90)
at java.awt.EventQueue$4.run(EventQueue.java:737)
at java.awt.EventQueue$4.run(EventQueue.java:735)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:734)
at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:779)
at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:716)
at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:395)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)