weird error: expected unqualified-id before '...' token

The .ui file:

Code:

<ui version="4.0" >
 <class>FormOutput</class>
 <widget class="QWidget" name="FormOutput" >
  <property name="geometry" >
   <rect>
    <x>0</x>
    <y>0</y>
    <width>252</width>
    <height>260</height>
   </rect>
  </property>
  <property name="windowTitle" >
   <string>Form</string>
  </property>
  <property name="styleSheet" >
   <string notr="true" >border: 1 solid black;</string>
  </property>
  <layout class="QHBoxLayout" >
   <item>
    <widget class="QTextBrowser" name="textBrowser" >
     <property name="frameShape" >
      <enum>QFrame::StyledPanel</enum>
     </property>
     <property name="html" >
      <string>&lt;!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN" "http://www.w3.org/TR/REC-html40/strict.dtd">
&lt;html>&lt;head>&lt;meta name="qrichtext" content="1" />&lt;style type="text/css">
p, li { white-space: pre-wrap; }
&lt;/style>&lt;/head>&lt;body style=" font-family:'Sans Serif'; font-size:9pt; font-weight:400; font-style:normal;">
&lt;p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; font-family:'MS Shell Dlg 2'; font-size:8pt;">.. initialising program..done&lt;/p>&lt;/body>&lt;/html></string>
     </property>
    </widget>
   </item>
  </layout>
 </widget>
 <resources/>
 <connections/>
</ui>

//end of .ui file

the error message for this piece of code:
expected unqualified-id before '<' token (line 1 )
expected unqualified-id before '<' token (line 16)
expected unqualified-id before '!' token (line 25)
Multiple markers at this line (refering to line 26)
- expected constructor, destructor, or type conversion before '>' token
- 'style' does not name a type
- 'meta' does not name a type
Multiple markers at this line (refering to line 28)
- 'body' does not name a type
- expected unqualified-id before '/' token
- expected constructor, destructor, or type conversion before ';' token
Multiple markers at this line (refering to line 29)
- 'p' does not name a type
- expected unqualified-id before '/' token

My question:
What I don't understand is, why is it giving an error on line 1 for no apparent reason? It doesn't give me that error on the other .ui files.
And why does it seem that it doesn't recognize html-code in the html part.
Does anybody have some clue at what is the problem here?

Edit: posted the .h and .cpp file now

the .h file:

Code:

#ifndef FORMOUTPUT_H_
#define FORMOUTPUT_H_
 
#include "FormOutput.ui"
 
	class FormOutput : public QWidget, public Ui_FormOutput
	{
		Q_OBJECT
	public:
		FormOutput(QWidget* parent = 0, Qt::WFlags flags = 0);
		virtual ~FormOutput();
 
	public slots:
		void appendError(QString message);
		void appendMessage(QString message);
		void appendDebugMessage(QString message);
		void appendCommand(QString message);
 
	private:
		void addTextAtTop(QString message);
	};
}
#endif

the .cpp file:

#include "FormOutput.h"

Code:

FormOutput::FormOutput(QWidget* parent /*= 0*/, Qt::WFlags flags /*= 0*/) : QWidget(parent, flags)
{
	setupUi(this);
}
 
 
FormOutput::~FormOutput()
{
}
 
void FormOutput::addTextAtTop(QString message)
{
	QTextCursor cursor = this->textBrowser->textCursor();
	cursor.movePosition(QTextCursor::Start);
	cursor.insertHtml(message + "<br />");
}
 
void FormOutput::appendMessage(QString message)
{
	this->addTextAtTop(".. " + message);
}
 
void FormOutput::appendDebugMessage(QString message)
{
	this->addTextAtTop("<font color=\"grey\"># " + message +"</font>");
}
 
void FormOutput::appendCommand(QString message)
{
	this->addTextAtTop("<font color=\"green\">-> " + message +"</font>");
}
 
void FormOutput::appendError(QString message)
{
	this->addTextAtTop("<font color=\"red\">-> <b>" + message +"</b></font>");
}
 
}