diff --git a/deploy/MakeQtTravisTarball.sh b/deploy/MakeQtTravisTarball.sh
index 7d9d9e27cd6cbeff6b4803e7e627573d8af6290a..6a0d2b3f5bebb9c61ba593fc3c36f9909c873877 100755
--- a/deploy/MakeQtTravisTarball.sh
+++ b/deploy/MakeQtTravisTarball.sh
@@ -1,28 +1,23 @@
 #!/bin/bash -x
 
-if [[ $# -eq 0 ]]; then
-        echo 'MakeQtTravisTarball.sh QtDirectory QtFullVersion QtBaseVersion BuildType'
-        exit 1
+if [ $# -ne 2 ]; then
+	echo 'MakeQtTravisTarball.sh QtDirectory BuildType'
+	exit 1
 fi
 
 QT_DIRECTORY=$1
 if [ ! -d ${QT_DIRECTORY} ]; then
-        echo 'Specify directory for Qt Directory.'
-        exit 1
+	echo 'Specify directory for Qt Directory to copy from.'
+	exit 1
 fi
 
-QT_FULL_VERSION=$2
-if [ ! -d ${QT_DIRECTORY}/${QT_FULL_VERSION} ]; then
-        echo 'Qt version directory not found'
-        exit 1
-fi
-
-QT_BASE_VERSION=$3
+QT_FULL_VERSION=5.9.3
+QT_BASE_VERSION=5.9
 
-QT_BUILD_TYPE=$4
+QT_BUILD_TYPE=$2
 if [ ! -d ${QT_DIRECTORY}/${QT_FULL_VERSION}/${QT_BUILD_TYPE} ]; then
-        echo 'Qt build type directory not found'
-        exit 1
+	echo 'Qt build type directory not found. Specify example: clang_62'
+    exit 1
 fi
 
 mkdir -p Qt${QT_BASE_VERSION}-${QT_BUILD_TYPE}/${QT_FULL_VERSION}/${QT_BUILD_TYPE}
diff --git a/src/Terrain/TerrainQuery.cc b/src/Terrain/TerrainQuery.cc
index 49fa1a53a3501fb4e24aa2e38ddd607f2a41c368..ed7ebb46b1690efc119fe19edc26cb46614add0a 100644
--- a/src/Terrain/TerrainQuery.cc
+++ b/src/Terrain/TerrainQuery.cc
@@ -10,6 +10,7 @@
 #include "TerrainQuery.h"
 #include "QGCMapEngine.h"
 #include "QGeoMapReplyQGC.h"
+#include "QGCApplication.h"
 
 #include <QUrl>
 #include <QUrlQuery>
@@ -36,6 +37,11 @@ TerrainAirMapQuery::TerrainAirMapQuery(QObject* parent)
 
 void TerrainAirMapQuery::requestCoordinateHeights(const QList<QGeoCoordinate>& coordinates)
 {
+    if (qgcApp()->runningUnitTests()) {
+        emit coordinateHeights(false, QList<double>());
+        return;
+    }
+
     QString points;
     foreach (const QGeoCoordinate& coord, coordinates) {
             points += QString::number(coord.latitude(), 'f', 10) + ","
@@ -52,6 +58,11 @@ void TerrainAirMapQuery::requestCoordinateHeights(const QList<QGeoCoordinate>& c
 
 void TerrainAirMapQuery::requestPathHeights(const QGeoCoordinate& fromCoord, const QGeoCoordinate& toCoord)
 {
+    if (qgcApp()->runningUnitTests()) {
+        emit pathHeights(false, qQNaN(), qQNaN(), QList<double>());
+        return;
+    }
+
     QString points;
     points += QString::number(fromCoord.latitude(), 'f', 10) + ","
             + QString::number(fromCoord.longitude(), 'f', 10) + ",";
@@ -67,6 +78,11 @@ void TerrainAirMapQuery::requestPathHeights(const QGeoCoordinate& fromCoord, con
 
 void TerrainAirMapQuery::requestCarpetHeights(const QGeoCoordinate& swCoord, const QGeoCoordinate& neCoord, bool statsOnly)
 {
+    if (qgcApp()->runningUnitTests()) {
+        emit carpetHeights(false, qQNaN(), qQNaN(), QList<QList<double>>());
+        return;
+    }
+
     QString points;
     points += QString::number(swCoord.latitude(), 'f', 10) + ","
             + QString::number(swCoord.longitude(), 'f', 10) + ",";
@@ -102,6 +118,17 @@ void TerrainAirMapQuery::_sendQuery(const QString& path, const QUrlQuery& urlQue
     }
 
     connect(networkReply, &QNetworkReply::finished, this, &TerrainAirMapQuery::_requestFinished);
+    connect(networkReply, QOverload<QNetworkReply::NetworkError>::of(&QNetworkReply::error), this, &TerrainAirMapQuery::_requestError);
+}
+
+void TerrainAirMapQuery::_requestError(QNetworkReply::NetworkError code)
+{
+    QNetworkReply* reply = qobject_cast<QNetworkReply*>(QObject::sender());
+
+    if (code != QNetworkReply::NoError) {
+        qCDebug(TerrainQueryLog) << "_requestError error:url:data" << reply->error() << reply->url() << reply->readAll();
+        return;
+    }
 }
 
 void TerrainAirMapQuery::_requestFinished(void)
@@ -109,7 +136,7 @@ void TerrainAirMapQuery::_requestFinished(void)
     QNetworkReply* reply = qobject_cast<QNetworkReply*>(QObject::sender());
 
     if (reply->error() != QNetworkReply::NoError) {
-        qCDebug(TerrainQueryLog) << "_requestFinished error:data" << reply->error() << reply->readAll();
+        qCDebug(TerrainQueryLog) << "_requestFinished error:url:data" << reply->error() << reply->url() << reply->readAll();
         reply->deleteLater();
         _requestFailed();
         return;
@@ -138,7 +165,7 @@ void TerrainAirMapQuery::_requestFinished(void)
 
     // Send back data
     const QJsonValue& jsonData = rootObject["data"];
-    qCDebug(TerrainQueryLog) << "_requestFinished sucess";
+    qCDebug(TerrainQueryLog) << "_requestFinished success";
     switch (_queryMode) {
     case QueryModeCoordinates:
         emit _parseCoordinateData(jsonData);
@@ -229,6 +256,11 @@ TerrainOfflineAirMapQuery::TerrainOfflineAirMapQuery(QObject* parent)
 
 void TerrainOfflineAirMapQuery::requestCoordinateHeights(const QList<QGeoCoordinate>& coordinates)
 {
+    if (qgcApp()->runningUnitTests()) {
+        emit coordinateHeights(false, QList<double>());
+        return;
+    }
+
     if (coordinates.length() == 0) {
         return;
     }
@@ -238,11 +270,21 @@ void TerrainOfflineAirMapQuery::requestCoordinateHeights(const QList<QGeoCoordin
 
 void TerrainOfflineAirMapQuery::requestPathHeights(const QGeoCoordinate& fromCoord, const QGeoCoordinate& toCoord)
 {
+    if (qgcApp()->runningUnitTests()) {
+        emit pathHeights(false, qQNaN(), qQNaN(), QList<double>());
+        return;
+    }
+
     _terrainTileManager->addPathQuery(this, fromCoord, toCoord);
 }
 
 void TerrainOfflineAirMapQuery::requestCarpetHeights(const QGeoCoordinate& swCoord, const QGeoCoordinate& neCoord, bool statsOnly)
 {
+    if (qgcApp()->runningUnitTests()) {
+        emit carpetHeights(false, qQNaN(), qQNaN(), QList<QList<double>>());
+        return;
+    }
+
     // TODO
     Q_UNUSED(swCoord);
     Q_UNUSED(neCoord);
diff --git a/src/Terrain/TerrainQuery.h b/src/Terrain/TerrainQuery.h
index ee07763bb58201b7bb81a57e589558962e5bca57..438a79179f54a72732300a8ba25dd708084fb088 100644
--- a/src/Terrain/TerrainQuery.h
+++ b/src/Terrain/TerrainQuery.h
@@ -67,6 +67,7 @@ public:
     void requestCarpetHeights(const QGeoCoordinate& swCoord, const QGeoCoordinate& neCoord, bool statsOnly) final;
 
 private slots:
+    void _requestError(QNetworkReply::NetworkError code);
     void _requestFinished(void);
 
 private: