DartDumper.cpp: 600: error: Unhandle internal class

[mragonias]

` python3 blutter.py "/mnt/c/Users/mrago/Downloads/uav292/lib/arm64-v8a" outuav2921 --rebuild

Dart version: 3.0.5, Snapshot: 90b56a561f70cd55e972cb49b79b3d8b, Target: android arm64 -- Configuring done (15.6s) -- Generating done (0.4s) -- Build files have been written to: /mnt/c/Users/mrago/Documents/frida/blutter-main/build/blutter_dartvm3.0.5_android_arm64 [22/22] Linking CXX executable blutter_dartvm3.0.5_android_arm64 -- Install configuration: "Release" -- Installing: /mnt/c/Users/mrago/Documents/frida/blutter-main/blutter/../bin/blutter_dartvm3.0.5_android_arm64 libapp is loaded at 0x7fd0bf1eb000 Dart heap at 0x7fcf00000000 Analyzing the application Dumping Object Pool /mnt/c/Users/mrago/Documents/frida/blutter-main/blutter/src/DartDumper.cpp: 600: error: Unhandle internal class `

[yzctzl]

I think you should upload your apk file, will help locate the error. AFAIK the reason for this error is that some predefined classes in internal VM are not properly converted to strings.

[mragonias]

I put here libapp/libflutter from 3 differents dart version from 3 different version of same app with DartDumper.cpp: 600: error: Unhandle internal class. https://www.mediafire.com/file/cri6unt2xrah98w/Libs.zip/file

[yzctzl]

i found it, you can just try comment the FATAL() in DartDumper.cpp line 600 or add something like that diff

diff --git a/blutter/src/DartDumper.cpp b/blutter/src/DartDumper.cpp
index 0014cdd..117b097 100644
--- a/blutter/src/DartDumper.cpp
+++ b/blutter/src/DartDumper.cpp
@@ -590,6 +590,11 @@ std::string DartDumper::ObjectToString(dart::Object& obj, bool simpleForm, bool
        }
        case dart::kInstanceCid:
                return std::format("Obj!Object@{:x}", (uint32_t)(intptr_t)obj.ptr());
+       case dart::kLibraryPrefixCid:{
+               const auto& prefix = dart::LibraryPrefix::Cast(obj);
+               const dart::String& name = dart::String::Handle(prefix.name());
+               return std::format("LibraryPrefix: {}@{:x}", name.ToCString(), (uint32_t)(intptr_t)obj.ptr());
+       }
        // TODO: enum subclass
        }

[mragonias]

Thanks you!! Works perfectly

[worawit]

Thanks @yzctzl for the patch. This is my first time seeing LibraryPrefix object in a flutter application. I will investigate more.