The open API in the package com.intellij.openapi.fileEditor.* has been
changed in the build 922. Some plugins may not work properly and cause IDEA
If your plugin uses this API couldn't you please correct them to be
compatible with the new API.
If you use one of such plugins couldn't you please stop using it until its
vendor reflects the changes in API.
Sorry for inconvenience.
JetBrains, Inc / IntelliJ Software
"Develop with pleasure!"