diff --git a/Build.cmd b/Build.cmd
index b89cf10..14ccd03 100755
--- a/Build.cmd
+++ b/Build.cmd
@@ -71,12 +71,10 @@ OSXPublish (){
 
 AndroidPublish (){
    if ! [ -d "${AndroidSdkDirectory}build-tools" ]; then
-   	printf "\x1b[31mINVALID ANDROID SDK PATH\x1b[0m\n";
-   	return;
+   	echo "POSSIBLE INVALID ANDROID SDK PATH";
    fi
    if ! [ -f "${AndroidNdkDirectory}ndk-build" ]; then
-   	printf "\x1b[31mINVALID ANDROID NDK PATH\x1b[0m\n";
-   	return;
+   	echo "POSSIBLE INVALID ANDROID NDK PATH";
    fi
    
    dotnet workload restore
diff --git a/DirectPackageInstaller/DirectPackageInstaller/IO/PartialHttpStream.cs b/DirectPackageInstaller/DirectPackageInstaller/IO/PartialHttpStream.cs
index 8f6a0a2..1be4436 100644
--- a/DirectPackageInstaller/DirectPackageInstaller/IO/PartialHttpStream.cs
+++ b/DirectPackageInstaller/DirectPackageInstaller/IO/PartialHttpStream.cs
@@ -61,7 +61,7 @@ public PartialHttpStream(string url, int cacheLen = CacheLen)
 
         public override bool CanRead => true;
         public override bool CanWrite => false;
-        public override bool CanSeek => true;
+        public override bool CanSeek => Length > 0;
 
         public override long Position { get; set; }
 
@@ -238,7 +238,7 @@ private int HttpRead(byte[] buffer, ref int offset, ref int count, int Tries = 0
                     foreach (var Header in Headers)
                         req.Headers[Header.Key] = Header.Value;
 
-                    if (length != null || Position > 0)
+                    if (length > 0 || Position > 0)
                         req.AddRange(Position, Length - 1);
                     
                     resp = req.GetResponse();
@@ -274,6 +274,9 @@ private int HttpRead(byte[] buffer, ref int offset, ref int count, int Tries = 0
                     nread += Readed;
                 } while (Readed > 0 && count > 0);
 
+                if (Readed == 0 && length is null or -1)
+                    length = nread;
+
                 offset += nread;
                 count -= nread;
                 
diff --git a/DirectPackageInstaller/DirectPackageInstaller/SelfUpdate.cs b/DirectPackageInstaller/DirectPackageInstaller/SelfUpdate.cs
index 6c6d788..965273a 100644
--- a/DirectPackageInstaller/DirectPackageInstaller/SelfUpdate.cs
+++ b/DirectPackageInstaller/DirectPackageInstaller/SelfUpdate.cs
@@ -46,7 +46,7 @@ public static string? MainExecutable
 
         const string UpdateList = "Update.ini";
 
-        public static Version CurrentVersion = new Version("6.1.8");
+        public static Version CurrentVersion = new Version("6.1.9");
 
         public static Version? LastVersion = null;
 
@@ -156,14 +156,17 @@ public async Task DownloadUpdate()
 
         public bool FinishUpdatePending()
         {
-            if (!App.IsAndroid)
+            if (App.IsAndroid)
             {
                 try
                 {
                     if (Directory.Exists(TempUpdateDir))
+                    {
                         Directory.Delete(TempUpdateDir, true);
+                    }
                 }
                 catch { }
+
                 return false;
             }