Attempted to read a PyTorch file with version 3, but the maximum supported version for reading is 2. Your PyTorch installation may be too old. (init at ../caffe2/serialize/inline_container.cc:132)

[hurricane013]

I have created .pt file of keypoint_rcnn using torch=1.5 and vision=0.6.0 now trying to integrate it with my android app. The error I am getting is as below.

E/AndroidRuntime: FATAL EXCEPTION: main
Process: org.pytorch.helloworld, PID: 15691
java.lang.RuntimeException: Unable to start activity ComponentInfo{org.pytorch.helloworld/org.pytorch.helloworld.MainActivity}: com.facebook.jni.CppException: version_ <= kMaxSupportedFileFormatVersion INTERNAL ASSERT FAILED at ../caffe2/serialize/inline_container.cc:132, please report a bug to PyTorch. Attempted to read a PyTorch file with version 3, but the maximum supported version for reading is 2. Your PyTorch installation may be too old. (init at ../caffe2/serialize/inline_container.cc:132)
(no backtrace available)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3122)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3261)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1977)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:6923)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:870)
Caused by: com.facebook.jni.CppException: version_ <= kMaxSupportedFileFormatVersion INTERNAL ASSERT FAILED at ../caffe2/serialize/inline_container.cc:132, please report a bug to PyTorch. Attempted to read a PyTorch file with version 3, but the maximum supported version for reading is 2. Your PyTorch installation may be too old. (init at ../caffe2/serialize/inline_container.cc:132)
(no backtrace available)
at org.pytorch.NativePeer.initHybrid(Native Method)
at org.pytorch.NativePeer.(NativePeer.java:18)
at org.pytorch.Module.load(Module.java:23)
at org.pytorch.helloworld.MainActivity.onCreate(MainActivity.java:41)
at android.app.Activity.performCreate(Activity.java:7148)
at android.app.Activity.performCreate(Activity.java:7139)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1293)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3102)
... 11 more

[fmassa]

Hi,

I suppose you are trying to use torchscript to convert the model to mobile, is that correct?

I suspect that this might not work out-of-the-box currently, because PyTorch mobile doesn't yet support using operators registered outside of PyTorch (like roi_align in torchvision).

@dreiss is that still the case?

[dreiss]

Yes, but I think this issue is unrelated. It's just due to a change in the serialization format (which I think was reverted).

[fmassa]

Ok, following @dreiss comment, if you update PyTorch and torchvision this issue should go away, but you'll still have issues exporting keypoint-rcnn to mobile.

[hurricane013]

Yes @fmassa you are correct. I used pytorch 1.4 snapshot as a dependency, above error disappeared. But still I am getting build failed that even without showing any error. Now I am confused with what should be exact issue.

[fmassa]

@hurricane013 as I mentioned in the above post, we currently do not support exporting keypoint-rcnn to mobile yet unfortunately, but support for it will be added in future releases.

[cansozbir]

Hi, I wrote a simple MNIST classifier with CNN and got the same error on my android project.

E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.predictor, PID: 7253 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.predictor/com.example.predictor.MainActivity}: com.facebook.jni.CppException: version_ <= kMaxSupportedFileFormatVersion INTERNAL ASSERT FAILED at ../caffe2/serialize/inline_container.cc:132, please report a bug to PyTorch. Attempted to read a PyTorch file with version 3, but the maximum supported version for reading is 2. Your PyTorch installation may be too old. (init at ../caffe2/serialize/inline_container.cc:132) (no backtrace available) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3270) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3409) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:83) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2016) at android.os.Handler.dispatchMessage(Handler.java:107) at android.os.Looper.loop(Looper.java:214) at android.app.ActivityThread.main(ActivityThread.java:7356) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930) Caused by: com.facebook.jni.CppException: version_ <= kMaxSupportedFileFormatVersion INTERNAL ASSERT FAILED at ../caffe2/serialize/inline_container.cc:132, please report a bug to PyTorch. Attempted to read a PyTorch file with version 3, but the maximum supported version for reading is 2. Your PyTorch installation may be too old. (init at ../caffe2/serialize/inline_container.cc:132) (no backtrace available) at org.pytorch.NativePeer.initHybrid(Native Method) at org.pytorch.NativePeer.<init>(NativePeer.java:18) at org.pytorch.Module.load(Module.java:23) at com.example.predictor.MainActivity.onCreate(MainActivity.kt:47) at android.app.Activity.performCreate(Activity.java:7802) at android.app.Activity.performCreate(Activity.java:7791) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1299) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3245) ... 11 more Disconnected from the target VM, address: 'localhost:8602', transport: 'socket'

[fmassa]

@hurricane013 simple CNN models should work with mobile, I would expect this to be a version issue and if you update PyTorch / torchvision and re-save your weights, it should work

[cansozbir]

I see.
These are my package versions:

import torch
torch.version
'1.5.0.dev20200306'
import torchvision
torchvision.version
'0.6.0a0+f534fb5'

and this is what I added to dependencies.

implementation 'org.pytorch:pytorch_android:1.4.0'
implementation 'org.pytorch:pytorch_android_torchvision:1.4.0'

Should I install pytorch's 1.4 version or is there any implementation for 1.5?

[fmassa]

Yes, I think you might want to install PyTorch 1.4 and torchvision 0.5.0.

But I would recommend posting this question on the pytorch discuss forums, as this is outside of the scope of torchvision and I don't have much context to be able to help with android-specific issues

[hurricane013]

@hurricane013 simple CNN models should work with mobile, I would expect this to be a version issue and if you update PyTorch / torchvision and re-save your weights, it should work

@fmassa As I mentioned, I used 1.4 snapshot which is latest as a dependency in my android app, but i am still getting build failed without any error.