"Protobuf parsing failed" when trying to load onnx model

[HughPH]

This error occurs when running CRWKV.ONNX.Test.

Input Model Name (RWKV_32_2560_16.onnx): RWKV-4-Raven-3B-v11-Eng99-Other1-20230425-ctx4096_32_2560_16.bin
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Unhandled exception. Microsoft.ML.OnnxRuntime.OnnxRuntimeException: [ErrorCode:InvalidProtobuf] Load model from /home/hugh/RiderProjects/CSharp-RWKV-V4/CRWKV.ONNX.Test/bin/Debug/net6.0/Model/RWKV-4-Raven-3B-v11-Eng99-Other1-20230425-ctx4096_32_2560_16.bin failed:Protobuf parsing failed.
   at Microsoft.ML.OnnxRuntime.NativeApiStatus.VerifySuccess(IntPtr nativeStatus)
   at Microsoft.ML.OnnxRuntime.InferenceSession.Init(String modelPath, SessionOptions options, PrePackedWeightsContainer prepackedWeightsContainer)
   at Microsoft.ML.OnnxRuntime.InferenceSession..ctor(String modelPath, SessionOptions options)
   at RWKV.OnnxModel..ctor(String model, Int32 embed, Int32 layers) in /home/hugh/RiderProjects/CSharp-RWKV-V4/CRWKV.ONNX/RWKV/OnnxModel.cs:line 36
   at RWKV.RunnerFactoryExtend.RegisterRWKVOnnxModel(RunnerFactory runnerFactory, String name, String modelPath, String tokenizerPath, Int32 embed, Int32 layers) in /home/hugh/RiderProjects/CSharp-RWKV-V4/CRWKV.ONNX/RWKV/RunnerFactoryExtend.cs:line 15
   at RWKV.RunnerFactoryExtend.RegisterRWKVOnnxModel(RunnerFactory runnerFactory, String modelPath, String tokenizerPath, Int32 embed, Int32 layers) in /home/hugh/RiderProjects/CSharp-RWKV-V4/CRWKV.ONNX/RWKV/RunnerFactoryExtend.cs:line 10
   at Program.<Main>$(String[] args) in /home/hugh/RiderProjects/CSharp-RWKV-V4/CRWKV.ONNX.Test/Program.cs:line 17

Have also tried with 1B5

Input Model Name (RWKV_32_2560_16.onnx): RWKV-4-Raven-1B5-v11-Eng99-Other1-20230425-ctx4096_24_2048_16.bin
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Unhandled exception. Microsoft.ML.OnnxRuntime.OnnxRuntimeException: [ErrorCode:InvalidProtobuf] Load model from /home/hugh/RiderProjects/CSharp-RWKV-V4/CRWKV.ONNX.Test/bin/Debug/net6.0/Model/RWKV-4-Raven-1B5-v11-Eng99-Other1-20230425-ctx4096_24_2048_16.bin failed:Protobuf parsing failed.
   at Microsoft.ML.OnnxRuntime.NativeApiStatus.VerifySuccess(IntPtr nativeStatus)
   at Microsoft.ML.OnnxRuntime.InferenceSession.Init(String modelPath, SessionOptions options, PrePackedWeightsContainer prepackedWeightsContainer)
   at Microsoft.ML.OnnxRuntime.InferenceSession..ctor(String modelPath, SessionOptions options)
   at RWKV.OnnxModel..ctor(String model, Int32 embed, Int32 layers) in /home/hugh/RiderProjects/CSharp-RWKV-V4/CRWKV.ONNX/RWKV/OnnxModel.cs:line 36
   at RWKV.RunnerFactoryExtend.RegisterRWKVOnnxModel(RunnerFactory runnerFactory, String name, String modelPath, String tokenizerPath, Int32 embed, Int32 layers) in /home/hugh/RiderProjects/CSharp-RWKV-V4/CRWKV.ONNX/RWKV/RunnerFactoryExtend.cs:line 15
   at RWKV.RunnerFactoryExtend.RegisterRWKVOnnxModel(RunnerFactory runnerFactory, String modelPath, String tokenizerPath, Int32 embed, Int32 layers) in /home/hugh/RiderProjects/CSharp-RWKV-V4/CRWKV.ONNX/RWKV/RunnerFactoryExtend.cs:line 10
   at Program.<Main>$(String[] args) in /home/hugh/RiderProjects/CSharp-RWKV-V4/CRWKV.ONNX.Test/Program.cs:line 17
Aborted (core dumped)

These .bin files downloaded from: https://huggingface.co/imxcstar/rwkv-4-raven-onnx/tree/main

[HughPH]

For the next person who faces this... It's not obvious because HF doesn't show the whole filenames, but the smaller files are .onnx files which you will also need.