IU 90.116 parse errors continue [maybe JSP related?]

I continue to have a ton of parse errors while using IDEA.
Alot of IntelliJ features like the gutter "performing code analysis" eye,   Analyse->Inspect Code, refactoring, etc. don't work because they hit parse errors.
The most common stacktrace is "Chameleons must not be parsed till they're in file tree", and most of the stacktraces seem to involve parsing JSP files.
If there is anything I can do to help Jetbrains fix this, please let me know.

See attached files for full stacktraces for a sample of some of the errors encountered.

Thanks,
-Alex


Chameleons must not be parsed till they're in file tree
java.lang.Throwable
    at com.intellij.openapi.diagnostic.Logger.error(Logger.java:48)
    at com.intellij.psi.impl.source.tree.LazyParseableElement.b(LazyParseableElement.java:70)
    at com.intellij.psi.impl.source.tree.LazyParseableElement.getFirstChildNode(LazyParseableElement.java:13)
    at com.intellij.psi.impl.source.tree.LazyParseableElement.getFirstChildNode(LazyParseableElement.java:14)
    at com.intellij.psi.impl.source.parsing.ParseUtil$JavaMissingTokenInserter.a(ParseUtil.java:33)
    at com.intellij.psi.impl.source.parsing.ParseUtil$JavaMissingTokenInserter.b(ParseUtil.java:18)
    at com.intellij.psi.impl.source.parsing.ParseUtil$JavaMissingTokenInserter.invoke(ParseUtil.java:63)
    at com.intellij.psi.impl.source.parsing.ParseUtil.insertMissingTokens(ParseUtil.java:12)
    at com.intellij.lang.jsp.JspJavaParsing.parseJspClass(JspJavaParsing.java:120)
    at com.intellij.psi.jsp.JspElementTypeEx$1.parseContents(JspElementTypeEx.java:54)
    at com.intellij.psi.impl.source.tree.LazyParseableElement.b(LazyParseableElement.java:26)
    at com.intellij.psi.impl.source.tree.LazyParseableElement.getFirstChildNode(LazyParseableElement.java:13)


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