3 files changed, 22 insertions, 15 deletions
diff --git a/api/logic/modplatform/atlauncher/ATLPackInstallTask.cpp b/api/logic/modplatform/atlauncher/ATLPackInstallTask.cpp
index 25c6d58d..12ceaccd 100644
--- a/api/logic/modplatform/atlauncher/ATLPackInstallTask.cpp
+++ b/api/logic/modplatform/atlauncher/ATLPackInstallTask.cpp
@@ -73,13 +73,13 @@ void PackInstallTask::onDownloadSucceeded()
     auto vlist = ENV.metadataIndex()->get("net.minecraft");
     if(!vlist)
     {
-        emitFailed(tr("Failed to get local metadata index for ") + "net.minecraft");
+        emitFailed(tr("Failed to get local metadata index for %1").arg("net.minecraft"));
         return;
     }
 
     auto ver = vlist->getVersion(m_version.minecraft);
     if (!ver) {
-        emitFailed(tr("Failed to get local metadata index for ") + "net.minecraft" + " " + m_version.minecraft);
+        emitFailed(tr("Failed to get local metadata index for '%1' v%2").arg("net.minecraft").arg(m_version.minecraft));
         return;
     }
     ver->load(Net::Mode::Online);
@@ -141,7 +141,7 @@ QString PackInstallTask::getDirForModType(ModType type, QString raw)
             qWarning() << "Unsupported mod type: " + raw;
             return Q_NULLPTR;
         case ModType::Unknown:
-            emitFailed(tr("Unknown mod type: ") + raw);
+            emitFailed(tr("Unknown mod type: %1").arg(raw));
             return Q_NULLPTR;
     }
 
@@ -271,7 +271,7 @@ bool PackInstallTask::createLibrariesComponent(QString instanceRoot, std::shared
                 break;
             case DownloadType::Browser:
             case DownloadType::Unknown:
-                emitFailed(tr("Unknown or unsupported download type: ") + lib.download_raw);
+                emitFailed(tr("Unknown or unsupported download type: %1").arg(lib.download_raw));
                 return false;
         }
 
@@ -437,13 +437,13 @@ void PackInstallTask::downloadMods()
                 url = BuildConfig.ATL_DOWNLOAD_SERVER_URL + mod.url;
                 break;
             case DownloadType::Browser:
-                emitFailed(tr("Unsupported download type: ") + mod.download_raw);
+                emitFailed(tr("Unsupported download type: %1").arg(mod.download_raw));
                 return;
             case DownloadType::Direct:
                 url = mod.url;
                 break;
             case DownloadType::Unknown:
-                emitFailed(tr("Unknown download type: ") + mod.download_raw);
+                emitFailed(tr("Unknown download type: %1").arg(mod.download_raw));
                 return;
         }
 
diff --git a/api/logic/modplatform/modpacksch/FTBPackInstallTask.cpp b/api/logic/modplatform/modpacksch/FTBPackInstallTask.cpp
index 59546b00..068e3592 100644
--- a/api/logic/modplatform/modpacksch/FTBPackInstallTask.cpp
+++ b/api/logic/modplatform/modpacksch/FTBPackInstallTask.cpp
@@ -35,7 +35,7 @@ void PackInstallTask::executeTask()
     }
 
     if(!found) {
-        emitFailed("failed to find pack version " + m_version_name);
+        emitFailed(tr("Failed to find pack version %1").arg(m_version_name));
         return;
     }
 
diff --git a/api/logic/translations/TranslationsModel.cpp b/api/logic/translations/TranslationsModel.cpp
index adb3fa98..401b64d4 100644
--- a/api/logic/translations/TranslationsModel.cpp
+++ b/api/logic/translations/TranslationsModel.cpp
@@ -15,7 +15,19 @@
 
 #include "POTranslator.h"
 
-const static QLatin1Literal defaultLangCode("en");
+const static QLatin1Literal defaultLangCode("en_US");
+
+static QLocale getLocaleFromKey(const QString &key) {
+    if(key == "pt") {
+        return QLocale("pt_PT");
+    }
+    else if (key == "en") {
+        return QLocale("en_GB");
+    }
+    else {
+        return QLocale(key);
+    }
+}
 
 enum class FileType
 {
@@ -33,12 +45,7 @@ struct Language
     Language(const QString & _key)
     {
         key = _key;
-        if(key == "pt") {
-            locale = QLocale("pt_PT");
-        }
-        else {
-            locale = QLocale(key);
-        }
+        locale = getLocaleFromKey(key);
         updated = (key == defaultLangCode);
     }
 
@@ -452,7 +459,7 @@ bool TranslationsModel::selectLanguage(QString key)
      * In a multithreaded application, the default locale should be set at application startup, before any non-GUI threads are created.
      * This function is not reentrant.
      */
-    QLocale locale(langCode);
+    QLocale locale = getLocaleFromKey(langCode);
     QLocale::setDefault(locale);
 
     // if it's the default UI language, finish