idea-gitignore: IllegalArgumentException on IDEA startup

After updating to gitignore 1.7, I get the following when launching IDEA. IntelliJ IDEA 2016.3.4 Build #IC-163.12024.16, built on January 31, 2017 JRE: 1.8.0_112-release-408-b6 amd64 JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o

Plugin 'mobi.hsz.idea.gitignore' failed to initialize and will be disabled.  Please restart IntelliJ IDEA.

java.lang.IllegalArgumentException: Argument for @NotNull parameter 'defaultValue' of com/intellij/util/ObjectUtils.notNull must not be null
    at com.intellij.util.ObjectUtils.notNull(ObjectUtils.java)
    at com.intellij.util.ObjectUtils.notNull(ObjectUtils.java:74)
    at com.intellij.util.ObjectUtils.assertNotNull(ObjectUtils.java:35)
    at com.intellij.dvcs.repo.VcsRepositoryManager.getInstance(VcsRepositoryManager.java:61)
    at mobi.hsz.idea.gitignore.util.CacheMap.<init>(CacheMap.java:142)
    at mobi.hsz.idea.gitignore.IgnoreManager.<init>(IgnoreManager.java:282)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    at org.picocontainer.defaults.InstantiatingComponentAdapter.newInstance(InstantiatingComponentAdapter.java:193)
    at org.picocontainer.defaults.ConstructorInjectionComponentAdapter$1.run(ConstructorInjectionComponentAdapter.java:220)
    at org.picocontainer.defaults.ThreadLocalCyclicDependencyGuard.observe(ThreadLocalCyclicDependencyGuard.java:53)
    at org.picocontainer.defaults.ConstructorInjectionComponentAdapter.getComponentInstance(ConstructorInjectionComponentAdapter.java:248)
    at com.intellij.util.pico.CachingConstructorInjectionComponentAdapter.getComponentInstance(CachingConstructorInjectionComponentAdapter.java:58)
    at com.intellij.openapi.components.impl.ComponentManagerImpl$ComponentConfigComponentAdapter.getComponentInstance(ComponentManagerImpl.java:478)
    at com.intellij.openapi.components.impl.ComponentManagerImpl.createComponents(ComponentManagerImpl.java:125)
    at com.intellij.openapi.components.impl.ComponentManagerImpl.init(ComponentManagerImpl.java:109)
    at com.intellij.openapi.components.impl.ComponentManagerImpl.init(ComponentManagerImpl.java:96)
    at com.intellij.openapi.project.impl.ProjectImpl.init(ProjectImpl.java:287)
    at com.intellij.openapi.project.impl.ProjectManagerImpl.initProject(ProjectManagerImpl.java:222)
    at com.intellij.openapi.project.impl.ProjectManagerImpl.lambda$getDefaultProject$2(ProjectManagerImpl.java:280)
    at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:568)
    at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:519)
    at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:54)
    at com.intellij.openapi.progress.impl.CoreProgressManager.executeNonCancelableSection(CoreProgressManager.java:207)
    at com.intellij.openapi.project.impl.ProjectManagerImpl.getDefaultProject(ProjectManagerImpl.java:277)
    at com.intellij.ide.fileTemplates.FileTemplateManager.getDefaultInstance(FileTemplateManager.java:67)
    at org.jetbrains.plugins.scala.actions.NewPackageObjectAction.<init>(NewPackageObjectAction.scala:18)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    at com.intellij.util.ReflectionUtil.newInstance(ReflectionUtil.java:488)
    at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.convertStub(ActionManagerImpl.java:151)
    at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.getActionImpl(ActionManagerImpl.java:486)
    at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.getAction(ActionManagerImpl.java:475)
    at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.preloadActions(ActionManagerImpl.java:1252)
    at com.intellij.openapi.actionSystem.impl.ActionPreloader.preload(ActionPreloader.java:32)
    at com.intellij.openapi.application.Preloader.lambda$null$0(Preloader.java:74)
    at com.intellij.openapi.progress.impl.CoreProgressManager$3.run(CoreProgressManager.java:179)
    at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:568)
    at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:519)
    at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:54)
    at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:164)
    at com.intellij.openapi.application.Preloader.lambda$initComponent$1(Preloader.java:72)
    at com.intellij.util.concurrency.BoundedTaskExecutor$2.run(BoundedTaskExecutor.java:210)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)