java.util.regex.PatternSyntaxException: Unexpected internal error near index 1
\
 ^
   at java.util.regex.Pattern.error(Pattern.java:1713)
   at java.util.regex.Pattern.compile(Pattern.java:1466)
   at java.util.regex.Pattern.<init>(Pattern.java:1133)
   at java.util.regex.Pattern.compile(Pattern.java:823)
   at java.lang.String.replaceAll(String.java:2189)
   at org.netbeans.modules.themebuilder.project.ThemeBuilderProjectOpenedHook.projectOpened(ThemeBuilderProjectOpenedHook.java:51)
   at org.netbeans.spi.project.ui.ProjectOpenedHook$1.projectOpened(ProjectOpenedHook.java:81)
   at org.netbeans.modules.project.ui.OpenProjectList.notifyOpened(OpenProjectList.java:1003)
   at org.netbeans.modules.project.ui.OpenProjectList.access$800(OpenProjectList.java:124)
   at org.netbeans.modules.project.ui.OpenProjectList$LoadOpenProjects.loadOnBackground(OpenProjectList.java:357)
   at org.netbeans.modules.project.ui.OpenProjectList$LoadOpenProjects.run(OpenProjectList.java:274)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:572)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:997)