Erro numero 8cb7ccee4519925c3b41458f338f1c1526da12a0 v2.7.5 (Erro desconhecido achado no portugol)

[ArthurLeandroCosta]

Esta issue foi gerada automaticamente

[pressione o botao "copiar erro" no Portugol Studio e cole o erro aqui antes de enviar]

br.univali.ps.nucleo.ExcecaoAplicacao: java.lang.ArrayIndexOutOfBoundsException: -2
at br.univali.ps.nucleo.TratadorExcecoes.uncaughtException(TratadorExcecoes.java:145)
at java.lang.ThreadGroup.uncaughtException(ThreadGroup.java:1057)
at java.lang.ThreadGroup.uncaughtException(ThreadGroup.java:1052)
at java.awt.EventDispatchThread.processException(EventDispatchThread.java:227)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:219)
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)
Caused by: java.lang.ArrayIndexOutOfBoundsException: -2
at javax.swing.text.AbstractDocument$BranchElement.getElement(AbstractDocument.java:2350)
at br.univali.ps.ui.rstautil.PortugolParser.adicionarErroAviso(PortugolParser.java:257)
at br.univali.ps.ui.rstautil.PortugolParser.notificarErrosAvisos(PortugolParser.java:168)
at br.univali.ps.ui.rstautil.PortugolParser.parse(PortugolParser.java:229)
at org.fife.ui.rsyntaxtextarea.ParserManager.actionPerformed(ParserManager.java:157)
at javax.swing.Timer.fireActionPerformed(Timer.java:313)
at javax.swing.Timer$DoPostEvent.run(Timer.java:245)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:205)
... 5 more

Código do Erro:
programa
{

funcao inicio()
{
  caracter vogal = 'a'
    para(vogal = 1 ; vogal > 10 ; vogal++)
    {
    		escreva("Digite uma Vogal: ")
		leia(vogal)
    }
}

}