Fixing Frida Server “TypeError: t is not a function” on Android

 Hi All,

Recently I have faced an issue with running the frida on Android. When using Frida for Android reverse engineering or runtime instrumentation, you might encounter this frustrating error immediately after starting the Frida server binary:

    # /data/local/tmp/frida &

And then suddenly:

    {"type":"error","description":"TypeError: t is not a function"}
    ...
    {"type":"error","description":"TypeError: Cannot read properties of undefined (reading 'find')"}

Root Cause: Google ART Runtime Module

Android devices using com.google.android.art (a system module version of ART) can conflict with how Frida’s agent initializes.

The module interferes with native libart.so loading, class resolution, or reflection APIs, which Frida relies on to set up its Java bridge.

Even before you attach to an app, Frida attempts to bootstrap into the ART layer — this is where the failure happens.

Fix That Worked

Simply remove the Google ART module and reboot the device:

    pm uninstall com.google.android.art

    reboot

Then re-run the Frida server manually:

    /data/local/tmp/frida &

You should now see a clean Frida startup with no Java bridge errors.