diff --git a/androidprojectmodifier.cpp b/androidprojectmodifier.cpp
index 6e85e6b..f87be63 100644
--- a/androidprojectmodifier.cpp
+++ b/androidprojectmodifier.cpp
@@ -72,7 +72,7 @@ QString AndroidProjectModifier::getFileContent(const QString filepath)
 {
     QFile file(m_directory.absolutePath() + filepath);
     if(!file.exists() || !file.open(QIODevice::ReadOnly | QIODevice::Text)) {
-        throw QString("The file does not exist or could not be opened for reading");
+        throw QString("The file '" + file.fileName() + "' does not exist or could not be opened for reading");
     }
 
     QTextStream stream(&file);
@@ -88,7 +88,7 @@ void AndroidProjectModifier::updateFileContent(const QString filepath, const QSt
 {
     QFile file(m_directory.absolutePath() + filepath);
     if(!file.exists()  || !file.open(QIODevice::ReadWrite | QIODevice::Text | QIODevice::Truncate)) {
-        throw QString("The file does not exist or could not be opened for writing");
+        throw QString("The file '" + file.fileName() + "' does not exist or could not be opened for writing");
     }
 
     QTextStream stream(&file);
diff --git a/githelper.cpp b/githelper.cpp
index 9683ca8..20de7b0 100644
--- a/githelper.cpp
+++ b/githelper.cpp
@@ -19,7 +19,7 @@ void GitHelper::clone(QDir directory)
 {
     directory = QDir(directory);
     if (directory.exists()) {
-        throw QString("The directory already exists");
+        throw QString("The directory '" + directory.absolutePath() + "' already exists");
     }
 
     git_repository *repository = nullptr;
@@ -34,8 +34,8 @@ void GitHelper::checkout(QString directory)
 
 void GitHelper::checkout(QDir directory)
 {
-    if(!directory.exists()) {
-        throw QString("The directory does not exist");
+    if (!directory.exists()) {
+        throw QString("The directory '" + directory.path() + "' does not exist");
     }
 
     git_checkout_options options = GIT_CHECKOUT_OPTIONS_INIT;
@@ -64,7 +64,7 @@ void GitHelper::reinitGitDirectory(QString directory)
 void GitHelper::reinitGitDirectory(QDir directory)
 {
     if(!directory.exists()) {
-        throw QString("The directory does not exist");
+        throw QString("The directory '" + directory.path() + "' does not exist");
     }
 
     QDir gitDir = directory.filePath(".git");
@@ -86,7 +86,7 @@ void GitHelper::initialCommit(QString directory)
 void GitHelper::initialCommit(QDir directory)
 {
     if(!directory.exists()) {
-        throw QString("The directory does not exist");
+        throw QString("The directory '" + directory.path() + "' does not exist");
     }
 
     git_index *index = nullptr;
@@ -134,6 +134,6 @@ void GitHelper::gitError(int status)
 {
     if(status < 0) {
         const git_error *e = giterr_last();
-        throw QString::fromUtf8(e->message);
+        throw "[Git Error]: " + QString::fromUtf8(e->message);
     }
 }
diff --git a/inputoutput.cpp b/inputoutput.cpp
index a304476..fcfcbf5 100644
--- a/inputoutput.cpp
+++ b/inputoutput.cpp
@@ -14,18 +14,3 @@ void InputOutput::writeln(QString text)
 {
     write(text + "\n");
 }
-
-/*QString InputOutput::readStdin()
-{
-    std::string result;
-    std::cin >> result;
-
-    return QString::fromStdString(result);
-}
-
-QString InputOutput::ask(QString question)
-{
-    write(question + ": ");
-    return readStdin();
-}
-*/
diff --git a/main.cpp b/main.cpp
index 6d8757a..c4256a8 100644
--- a/main.cpp
+++ b/main.cpp
@@ -41,9 +41,9 @@ int main(int argc, char *argv[])
 
         WebsiteParser parser(url, manifestPath);
 
-        auto icons = parser.getImages();
         auto basicData = parser.getData();
         basicData.insert("package", packageName);
+        auto icons = parser.getImages();
 
         AndroidProjectModifier androidProject(outputDirectory);
         androidProject.addSupportLibrary();
diff --git a/pwa-to-twa.pro b/pwa-to-twa.pro
index d9a4bae..7734544 100644
--- a/pwa-to-twa.pro
+++ b/pwa-to-twa.pro
@@ -5,7 +5,7 @@ CONFIG += c++14 console
 CONFIG -= app_bundle
 
 INCLUDEPATH += libgit/include
-LIBS += -lgit2 -lssl -lcrypto
+LIBS += -lgit2 -lssl -lcrypto -L"$$_PRO_FILE_PWD_/libgit/build"
 
 exists(pwa-to-twa.local.pro) {
     include(pwa-to-twa.local.pro)
diff --git a/websiteparser.cpp b/websiteparser.cpp
index bcaef1a..cb9fec9 100644
--- a/websiteparser.cpp
+++ b/websiteparser.cpp
@@ -38,7 +38,7 @@ const QString WebsiteParser::getManifestUrl()
     if(!m_manifestPath.isNull() && !m_manifestPath.isEmpty()) {
         manifestUrl = m_manifestPath;
     } else {
-        QRegularExpression regex("(<link.*?rel=['\"]manifest['\"]).*?>");
+        QRegularExpression regex("(<link[^<>]*?rel=['\"]manifest['\"]).*?>");
         auto matches = regex.match(getWebsiteContent());
         if(!matches.hasMatch()) {
             throw QString("Could not detect the manifest automatically, try using --manifest option");
@@ -89,6 +89,28 @@ const QHash<QString, QString> WebsiteParser::getData()
 
     auto json = getManifestContent().object();
 
+    QStringList missingKeys;
+
+    if (!json.contains("short_name")) {
+        missingKeys << "short_name";
+    }
+
+    if (!json.contains("theme_color")) {
+        missingKeys << "theme_color";
+    }
+
+    if (!json.contains("background_color")) {
+        missingKeys << "background_color";
+    }
+
+    if (!json.contains("start_url")) {
+        missingKeys << "start_url";
+    }
+
+    if(!missingKeys.empty()) {
+        throw QString("The manifest at url '" + getManifestUrl() + "' is missing these keys: " + missingKeys.join(", "));
+    }
+
     result.insert("hostname", m_url.host());
     result.insert("short_name", json.take("short_name").toString());
     result.insert("theme_color", json.take("theme_color").toString());
@@ -104,21 +126,26 @@ const QList<QHash<QString, QString>> WebsiteParser::getImages()
 
     auto json = getManifestContent().object().take("icons").toArray();
 
+    if (json.empty()) {
+        throw QString("The manifest at url '" + getManifestUrl() + "' does not contain any icons");
+    }
+
     QJsonArray::const_iterator iterator;
 
     for(iterator = json.constBegin(); iterator != json.constEnd(); ++iterator) {
         auto icon = (*iterator).toObject();
 
         auto sizes = icon.take("sizes").toString().split("x");
+        auto url = icon.take("src").toString();
 
         if(sizes.length() != 2 || sizes.at(0) != sizes.at(1)) {
-            qWarning() << "[Warning] The icon does not have a valid size attribute, ignoring";
+            qWarning() << "[Warning] The icon with url '" + url + "' does not have a valid size attribute, ignoring";
             continue;
         }
 
         QHash<QString, QString> iconHash;
         iconHash.insert("size", sizes.at(0));
-        iconHash.insert("url", getUrl(icon.take("src").toString()));
+        iconHash.insert("url", getUrl(url));
         result.append(iconHash);
     }