No implementation found for OfflineRecognizer.newFromAsset

[anthonyfooalways-boop]

I’m trying to initialize Sherpa NCNN’s OfflineRecognizer on Android using OfflineRecognizer.newFromAsset, but I encounter the following error at runtime:

No implementation found for long com.k2fsa.sherpa.ncnn.OfflineRecognizer.newFromAsset(
android.content.res.AssetManager,
com.k2fsa.sherpa.ncnn.OfflineRecognizerConfig
)
(tried Java_com_k2fsa_sherpa_ncnn_OfflineRecognizer_newFromAsset and
Java_com_k2fsa_sherpa_ncnn_OfflineRecognizer_newFromAsset__Landroid_content_res_AssetManager_2Lcom_k2fsa_sherpa_ncnn_OfflineRecognizerConfig_2)

Steps to Reproduce:

Added lib/*.so files from Sherpa NCNN to jniLibs folder.

Added models to assets folder.

Called the following code in Kotlin/Java:

[csukuangfj]

Please describe detailed steps for reproducing.

For instance, you said

Added lib/*.so files from Sherpa NCNN to jniLibs folder.

But where you get such *.so files?

[anthonyfooalways-boop]

Please describe detailed steps for reproducing.

For instance, you said

Added lib/*.so files from Sherpa NCNN to jniLibs folder.

But where you get such *.so files?

I’m using the .so files from the archive sherpa-ncnn-v2.1.15-android.tar.bz2, downloaded from the v2.1.15 release page:
https://github.com/k2-fsa/sherpa-ncnn/releases/tag/v2.1.15

For the offline recognizer, I’m using this specific version of OfflineRecognizer.kt:

sherpa-ncnn/sherpa-ncnn/kotlin-api/OfflineRecognizer.kt

Line 40 in c61e50d

class OfflineRecognizer(

[csukuangfj]

I hope you know that 2.1.15 was released in September, while the code you refer to was merged in October.

You can not use an old version .so file with the latest code.

You MUST build the .so by yourself from source.