diff --git a/src/libs/ifc/exception/vexception.cpp b/src/libs/ifc/exception/vexception.cpp
index e50f9007b..9cce17db9 100644
--- a/src/libs/ifc/exception/vexception.cpp
+++ b/src/libs/ifc/exception/vexception.cpp
@@ -42,10 +42,10 @@
  * @brief VException constructor exception
  * @param what string with error
  */
-VException::VException(const QString &what) V_NOEXCEPT_EXPR (true)
-    :QException(), what(what), moreInfo(QString())
+VException::VException(const QString &error)
+    :QException(), error(error), moreInfo(QString())
 {
-    Q_ASSERT_X(not what.isEmpty(), Q_FUNC_INFO, "Error message is empty");
+    Q_ASSERT_X(not error.isEmpty(), Q_FUNC_INFO, "Error message is empty");
 }
 
 //---------------------------------------------------------------------------------------------------------------------
@@ -53,7 +53,7 @@ VException::VException(const QString &what) V_NOEXCEPT_EXPR (true)
  * @brief VException copy constructor
  * @param e exception
  */
-VException::VException(const VException &e):what(e.What()), moreInfo(e.MoreInformation())
+VException::VException(const VException &e):error(e.WhatUtf8()), moreInfo(e.MoreInformation())
 {}
 
 //---------------------------------------------------------------------------------------------------------------------
@@ -63,7 +63,7 @@ VException &VException::operator=(const VException &e)
     {
         return *this;
     }
-    this->what = e.What();
+    this->error = e.WhatUtf8();
     this->moreInfo = e.MoreInformation();
     return *this;
 }
@@ -75,8 +75,7 @@ VException &VException::operator=(const VException &e)
  */
 QString VException::ErrorMessage() const
 {
-    QString error = QString("Exception: %1").arg(what);
-    return error;
+    return QString("Exception: %1").arg(error);
 }
 
 //---------------------------------------------------------------------------------------------------------------------
@@ -137,9 +136,15 @@ Q_NORETURN void VException::raise() const
     throw *this;
 }
 
+//---------------------------------------------------------------------------------------------------------------------
+const char* VException::what() const V_NOEXCEPT_EXPR (true)
+{
+    return error.toUtf8().constData();
+}
+
 //-----------------------------------------VExceptionToolWasDeleted----------------------------------------------------
-VExceptionToolWasDeleted::VExceptionToolWasDeleted(const QString &what) V_NOEXCEPT_EXPR (true)
-    :VException(what)
+VExceptionToolWasDeleted::VExceptionToolWasDeleted(const QString &error)
+    :VException(error)
 {
 }
 
diff --git a/src/libs/ifc/exception/vexception.h b/src/libs/ifc/exception/vexception.h
index 72213c9ff..2dde2b6aa 100644
--- a/src/libs/ifc/exception/vexception.h
+++ b/src/libs/ifc/exception/vexception.h
@@ -41,7 +41,7 @@ class VException : public QException
 {
     Q_DECLARE_TR_FUNCTIONS(VException)
 public:
-    explicit VException(const QString &what) V_NOEXCEPT_EXPR (true);
+    explicit VException(const QString &error);
     VException(const VException &e);
     VException &operator=(const VException &e);
     virtual ~VException() V_NOEXCEPT_EXPR (true) Q_DECL_OVERRIDE {}
@@ -51,12 +51,14 @@ public:
     virtual VException *clone() const Q_DECL_OVERRIDE;
     virtual QString ErrorMessage() const;
     virtual QString DetailedInformation() const;
-    QString         What() const;
+    QString         WhatUtf8() const V_NOEXCEPT_EXPR (true);
     void            AddMoreInformation(const QString &info);
     QString         MoreInformation() const;
+    virtual const char* what() const V_NOEXCEPT_EXPR (true);
+
 protected:
-    /** @brief what string with error */
-    QString         what;
+    /** @brief error string with error */
+    QString         error;
 
     /** @brief moreInfo more information about error */
     QString         moreInfo;
@@ -69,9 +71,9 @@ protected:
  * @brief What return string with error
  * @return string with error
  */
-inline QString VException::What() const
+inline QString VException::WhatUtf8() const V_NOEXCEPT_EXPR (true)
 {
-    return what;
+    return error;
 }
 
 //---------------------------------------------------------------------------------------------------------------------
@@ -89,7 +91,7 @@ class VExceptionToolWasDeleted : public VException
 {
     Q_DECLARE_TR_FUNCTIONS(VExceptionToolDeleted)
 public:
-    explicit VExceptionToolWasDeleted(const QString &what) V_NOEXCEPT_EXPR (true);
+    explicit VExceptionToolWasDeleted(const QString &error);
     VExceptionToolWasDeleted(const VExceptionToolWasDeleted &e);
     VExceptionToolWasDeleted &operator=(const VExceptionToolWasDeleted &e);
     virtual ~VExceptionToolWasDeleted() V_NOEXCEPT_EXPR (true) Q_DECL_OVERRIDE {}
diff --git a/src/libs/ifc/exception/vexceptionbadid.cpp b/src/libs/ifc/exception/vexceptionbadid.cpp
index cec574d53..80cad96fd 100644
--- a/src/libs/ifc/exception/vexceptionbadid.cpp
+++ b/src/libs/ifc/exception/vexceptionbadid.cpp
@@ -31,20 +31,20 @@
 //---------------------------------------------------------------------------------------------------------------------
 /**
  * @brief VExceptionBadId exception bad id
- * @param what string with error
+ * @param error string with error
  * @param id id
  */
-VExceptionBadId::VExceptionBadId(const QString &what, const quint32 &id)
-    :VException(what), id(id), key(QString()){}
+VExceptionBadId::VExceptionBadId(const QString &error, const quint32 &id)
+    :VException(error), id(id), key(QString()){}
 
 //---------------------------------------------------------------------------------------------------------------------
 /**
  * @brief VExceptionBadId exception bad id
- * @param what string with error
+ * @param error string with error
  * @param key string key
  */
-VExceptionBadId::VExceptionBadId(const QString &what, const QString &key)
-    :VException(what), id(NULL_ID), key(key){}
+VExceptionBadId::VExceptionBadId(const QString &error, const QString &key)
+    :VException(error), id(NULL_ID), key(key){}
 
 //---------------------------------------------------------------------------------------------------------------------
 /**
@@ -77,11 +77,11 @@ QString VExceptionBadId::ErrorMessage() const
     QString error;
     if (key.isEmpty())
     {
-        error = QString("ExceptionBadId: %1, id = %2").arg(what).arg(id);
+        error = QString("ExceptionBadId: %1, id = %2").arg(error).arg(id);
     }
     else
     {
-        error = QString("ExceptionBadId: %1, id = %2").arg(what).arg(key);
+        error = QString("ExceptionBadId: %1, id = %2").arg(error).arg(key);
     }
     return error;
 }
diff --git a/src/libs/ifc/exception/vexceptionbadid.h b/src/libs/ifc/exception/vexceptionbadid.h
index 2365f2b28..4e98f958e 100644
--- a/src/libs/ifc/exception/vexceptionbadid.h
+++ b/src/libs/ifc/exception/vexceptionbadid.h
@@ -37,8 +37,8 @@
 class VExceptionBadId : public VException
 {
 public:
-    VExceptionBadId(const QString &what, const quint32 &id);
-    VExceptionBadId(const QString &what, const QString &key);
+    VExceptionBadId(const QString &error, const quint32 &id);
+    VExceptionBadId(const QString &error, const QString &key);
     VExceptionBadId(const VExceptionBadId &e);
     VExceptionBadId &operator=(const VExceptionBadId &e);
     virtual         ~VExceptionBadId() V_NOEXCEPT_EXPR (true) Q_DECL_OVERRIDE {}
diff --git a/src/libs/ifc/exception/vexceptionconversionerror.cpp b/src/libs/ifc/exception/vexceptionconversionerror.cpp
index 8c8d8369c..a8ee62be8 100644
--- a/src/libs/ifc/exception/vexceptionconversionerror.cpp
+++ b/src/libs/ifc/exception/vexceptionconversionerror.cpp
@@ -31,11 +31,11 @@
 //---------------------------------------------------------------------------------------------------------------------
 /**
  * @brief VExceptionConversionError exception conversion error
- * @param what string with error
+ * @param error string with error
  * @param str string, where happend error
  */
-VExceptionConversionError::VExceptionConversionError(const QString &what, const QString &str)
-    :VException(what), str(str)
+VExceptionConversionError::VExceptionConversionError(const QString &error, const QString &str)
+    :VException(error), str(str)
 {
     Q_ASSERT_X(not str.isEmpty(), Q_FUNC_INFO, "Error converting string is empty");
 }
@@ -60,6 +60,6 @@ VExceptionConversionError::~VExceptionConversionError() V_NOEXCEPT_EXPR (true)
  */
 QString VExceptionConversionError::ErrorMessage() const
 {
-    QString error = QString("ExceptionConversionError: %1 \"%2\"").arg(what, str);
+    QString error = QString("ExceptionConversionError: %1 \"%2\"").arg(error, str);
     return error;
 }
diff --git a/src/libs/ifc/exception/vexceptionconversionerror.h b/src/libs/ifc/exception/vexceptionconversionerror.h
index 9a413feea..99af2e6f3 100644
--- a/src/libs/ifc/exception/vexceptionconversionerror.h
+++ b/src/libs/ifc/exception/vexceptionconversionerror.h
@@ -37,7 +37,7 @@
 class VExceptionConversionError : public VException
 {
 public:
-    VExceptionConversionError(const QString &what, const QString &str);
+    VExceptionConversionError(const QString &error, const QString &str);
     VExceptionConversionError(const VExceptionConversionError &e);
     virtual         ~VExceptionConversionError() V_NOEXCEPT_EXPR (true) Q_DECL_OVERRIDE;
     virtual QString ErrorMessage() const Q_DECL_OVERRIDE;
diff --git a/src/libs/ifc/exception/vexceptionemptyparameter.cpp b/src/libs/ifc/exception/vexceptionemptyparameter.cpp
index 97fcc8679..fe5f647f2 100644
--- a/src/libs/ifc/exception/vexceptionemptyparameter.cpp
+++ b/src/libs/ifc/exception/vexceptionemptyparameter.cpp
@@ -69,7 +69,7 @@ VExceptionEmptyParameter::~VExceptionEmptyParameter() V_NOEXCEPT_EXPR (true)
  */
 QString VExceptionEmptyParameter::ErrorMessage() const
 {
-    QString error = QString("ExceptionEmptyParameter: %1 %2").arg(what, name);
+    QString error = QString("ExceptionEmptyParameter: %1 %2").arg(error, name);
     return error;
 }
 
diff --git a/src/libs/ifc/exception/vexceptionemptyparameter.h b/src/libs/ifc/exception/vexceptionemptyparameter.h
index ad1ab1b08..8dfade909 100644
--- a/src/libs/ifc/exception/vexceptionemptyparameter.h
+++ b/src/libs/ifc/exception/vexceptionemptyparameter.h
@@ -39,7 +39,8 @@ class QDomElement;
 class VExceptionEmptyParameter : public VException
 {
 public:
-    VExceptionEmptyParameter(const QString &what, const QString &name, const QDomElement &domElement);
+    VExceptionEmptyParameter(const QString &error, const QString &name,
+                             const QDomElement &domElement);
     VExceptionEmptyParameter(const VExceptionEmptyParameter &e);
     virtual         ~VExceptionEmptyParameter() V_NOEXCEPT_EXPR (true) Q_DECL_OVERRIDE;
     virtual QString ErrorMessage() const Q_DECL_OVERRIDE;
diff --git a/src/libs/ifc/exception/vexceptionobjecterror.cpp b/src/libs/ifc/exception/vexceptionobjecterror.cpp
index 757e2ae84..302d75d7f 100644
--- a/src/libs/ifc/exception/vexceptionobjecterror.cpp
+++ b/src/libs/ifc/exception/vexceptionobjecterror.cpp
@@ -62,7 +62,7 @@ VExceptionObjectError::VExceptionObjectError(const VExceptionObjectError &e)
  */
 QString VExceptionObjectError::ErrorMessage() const
 {
-    QString error = QString("ExceptionObjectError: %1").arg(what);
+    QString error = QString("ExceptionObjectError: %1").arg(error);
     return error;
 }
 
diff --git a/src/libs/ifc/exception/vexceptionobjecterror.h b/src/libs/ifc/exception/vexceptionobjecterror.h
index dbdf434f7..d7f9b77aa 100644
--- a/src/libs/ifc/exception/vexceptionobjecterror.h
+++ b/src/libs/ifc/exception/vexceptionobjecterror.h
@@ -39,7 +39,7 @@ class QDomElement;
 class VExceptionObjectError : public VException
 {
 public:
-    VExceptionObjectError(const QString &what, const QDomElement &domElement);
+    VExceptionObjectError(const QString &error, const QDomElement &domElement);
     VExceptionObjectError(const VExceptionObjectError &e);
     virtual ~VExceptionObjectError() V_NOEXCEPT_EXPR (true) Q_DECL_OVERRIDE {}
     virtual QString ErrorMessage() const Q_DECL_OVERRIDE;
diff --git a/src/libs/ifc/exception/vexceptionundo.h b/src/libs/ifc/exception/vexceptionundo.h
index c78d3c8fa..423e3e310 100644
--- a/src/libs/ifc/exception/vexceptionundo.h
+++ b/src/libs/ifc/exception/vexceptionundo.h
@@ -34,7 +34,7 @@
 class VExceptionUndo : public VException
 {
 public:
-    explicit VExceptionUndo(const QString &what);
+    explicit VExceptionUndo(const QString &error);
     VExceptionUndo(const VExceptionUndo &e);
     virtual ~VExceptionUndo() V_NOEXCEPT_EXPR (true) Q_DECL_OVERRIDE;
 };
diff --git a/src/libs/ifc/exception/vexceptionwrongid.cpp b/src/libs/ifc/exception/vexceptionwrongid.cpp
index 1a2c5e196..0265cf874 100644
--- a/src/libs/ifc/exception/vexceptionwrongid.cpp
+++ b/src/libs/ifc/exception/vexceptionwrongid.cpp
@@ -62,7 +62,7 @@ VExceptionWrongId::VExceptionWrongId(const VExceptionWrongId &e)
  */
 QString VExceptionWrongId::ErrorMessage() const
 {
-    QString error = QString("ExceptionWrongId: %1").arg(what);
+    QString error = QString("ExceptionWrongId: %1").arg(error);
     return error;
 }
 
diff --git a/src/libs/ifc/exception/vexceptionwrongid.h b/src/libs/ifc/exception/vexceptionwrongid.h
index f96ed58b0..a4993845b 100644
--- a/src/libs/ifc/exception/vexceptionwrongid.h
+++ b/src/libs/ifc/exception/vexceptionwrongid.h
@@ -39,7 +39,7 @@ class QDomElement;
 class VExceptionWrongId : public VException
 {
 public:
-    VExceptionWrongId(const QString &what, const QDomElement &domElement);
+    VExceptionWrongId(const QString &error, const QDomElement &domElement);
     VExceptionWrongId(const VExceptionWrongId &e);
     virtual ~VExceptionWrongId() V_NOEXCEPT_EXPR (true) Q_DECL_OVERRIDE {}
     virtual QString ErrorMessage() const Q_DECL_OVERRIDE;
diff --git a/src/libs/ifc/ifcdef.h b/src/libs/ifc/ifcdef.h
index 4dceb4b48..7d6793598 100644
--- a/src/libs/ifc/ifcdef.h
+++ b/src/libs/ifc/ifcdef.h
@@ -55,7 +55,7 @@ static const quint32 null_id = 0;
 #      define V_NOEXCEPT_EXPR(x) noexcept(x) // GCC 4.7 and following have noexcept
 #    endif
 #  elif defined(_MSC_FULL_VER) && _MSC_FULL_VER >= 180021114
-#    define QMUP_NOEXCEPT_EXPR(x) noexcept(x)
+#    define V_NOEXCEPT_EXPR(x) noexcept(x)
 #  else
 #    define V_NOEXCEPT_EXPR(x)
 #  endif