Failed to open libflutterengine.so

[ConnorRigby]

[flutter-pi] Warning: Could not load libflutter_engine.so.debug. Trying to open libflutter_engine.so...
[flutter-pi] Could not load libflutter_engine.so. dlopen: Success
[flutter-pi] Could not find a fitting libflutter_engine.
pi@raspberrypi:~$ file /usr/lib/libflutter_engine.so 
/usr/lib/libflutter_engine.so: ELF 64-bit LSB shared object, ARM aarch64, version 1 (SYSV), dynamically linked, BuildID[sha1]=
d347d9dfc8e6bca5381686b8756bf9bf966cf3b0, stripped
pi@raspberrypi:~$ 

[ConnorRigby]

sorry; i assumed raspbain used 64bit by default.