我遇到跟 #1747 类似的错误！按照 nihui 大神的说明成功将 resnet50 训练自己的数据集得到的模型部署至 ncnn 安卓端，运行正常（虽然就是fps有点低，只有可怜的0.2几QAQ），后又按照同样的步骤将 backbone 更换为 EfficientNet，不知为何就无法运行了，一点进去就闪退。感觉应该是模型的问题，但不知道是哪里的问题，期待大佬的指教！这是我的模型文件 param ， bin

android studio报错信息如下：

I/Hwaps: APS: EventAnalyzed: initAPS: version is 11.0.0.4
D/Hwaps: Fpsrequest create,type:EXACTLY_IDENTIFY
    Fpsrequest create,type:EXACTLY_IDENTIFY
    Fpsrequest create,type:OPENGL_SETTING
    FpsController create
D/Hwaps: APS: EventAnalyzed: reInitFpsPara :mBaseFps = 60; mMaxFps = 60
W/Settings: Setting device_provisioned has moved from android.provider.Settings.Secure to android.provider.Settings.Global.
V/HiTouch_HiTouchSensor: User setup is finished.
W/HwApsManager: HwApsManagerService, registerCallback, start !
D/Hwaps: APS: EventAnalyzed: registerCallbackInApsManagerService, mPkgName:com.wzt.yolov5; result = true
V/AudioManager: querySoundEffectsEnabled...
W/ActivityThread: handleWindowVisibility: no activity for token android.os.BinderProxy@6dc6b5d
V/ActivityThread: callActivityOnCreate
I/DecorView[]: pkgName:com.wzt.yolov5 old windowMode:0 new windoMode:1, isFixedSize:false
W/linker: Warning: "/data/app/com.wzt.yolov5-gC7uo3p7NhkEe0eu7DIzDA==/base.apk!/lib/arm64-v8a/libc++_shared.so" unused DT entry: unknown processor-specific (type 0x70000001 arg 0x0) (ignoring)
    Warning: "/data/app/com.wzt.yolov5-gC7uo3p7NhkEe0eu7DIzDA==/base.apk!/lib/arm64-v8a/libc++_shared.so" unused DT entry: unknown processor-specific (type 0x70000001 arg 0x0) (ignoring)
D/vulkan: searching for layers in '/data/app/com.wzt.yolov5-gC7uo3p7NhkEe0eu7DIzDA==/lib/arm64'
D/vulkan: searching for layers in '/data/app/com.wzt.yolov5-gC7uo3p7NhkEe0eu7DIzDA==/base.apk!/lib/arm64-v8a'
I/iGraphics: Platform: [kirin980] - [kirin980]
    [0030050c] PV 11
E/iGraphics: can not load local debug xml
D/vulkan: added global layer 'VK_LAYER_HUAWEI_iGraphics' from library '/system/lib64/libiGraphicsCore.huawei.so'
W/com.wzt.yolov5: type=1400 audit(0.0:4994754): avc: denied { map } for pid=19147 path="/dev/__properties__/u:object_r:huawei_perf_persist_public_read_prop:s0" dev="tmpfs" ino=16518 scontext=u:r:untrusted_app:s0:c150,c257,c512,c768 tcontext=u:object_r:huawei_perf_persist_public_read_prop:s0 tclass=file permissive=0
I/vulkan: Loaded layer VK_LAYER_HUAWEI_iGraphics
E/iGraphics: pfnCreateDebugReportCallback is nullptr
I/iGraphics: layers 0 VK_LAYER_HUAWEI_iGraphics
    extensions 0 VK_KHR_external_memory_capabilities
    extensions 1 VK_KHR_get_physical_device_properties2
    extensions 2 VK_KHR_get_surface_capabilities2
    extensions 3 VK_KHR_surface
W/ncnn: [0 Mali-G76]  queueC=0[2]  queueG=0[2]  queueT=0[2]
    [0 Mali-G76]  bugsbn1=0  bugbilz=0  bugcopc=0  bugihfa=0
    [0 Mali-G76]  fp16-p/s/a=1/1/1  int8-p/s/a=1/1/1
    [0 Mali-G76]  subgroup=8  basic=1  vote=0  ballot=0  shuffle=0
D/ActivityThread: add activity client record, r= ActivityRecord{61b3d1d token=android.os.BinderProxy@6dc6b5d {com.wzt.yolov5/com.wzt.yolov5.MainActivity}} token= android.os.BinderProxy@6dc6b5d
D/MouseWheelSynthesizer: mMoveStepInDp: 64, mMoveStepInPixel: 192, mUpTimeDelayed: 100
D/ViewRootImpl: ViewRootImpl mIsInProductivePCDisplay: false
D/InputEventReceiver: dispatchInputInterval 1000000
I/Choreographer: Skipped 35 frames!  The application may be doing too much work on its main thread.
D/HiTouch_PressGestureDetector: onAttached, package=com.wzt.yolov5, windowType=1, mIsHiTouchRestricted=false
D/mali_winsys: EGLint new_window_surface(egl_winsys_display *, void *, EGLSurface, EGLConfig, egl_winsys_surface **, EGLBoolean) returns 0x3000
I/HwViewRootImpl: removeInvalidNode all the node in jank list is out of time
D/DecorView: showOrHideHighlightView: hasFocus=false; winMode=1; isMrgNull=true
D/OpenGLRenderer: disableOutlineDraw is true
I/Camera2CameraInfo: Device Level: INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED
D/Camera: Use cases [ImageAnalysis:androidx.camera.core.ImageAnalysis-4131991d-3026-4a80-81e7-360e4f793ea3, Preview:androidx.camera.core.Preview-b9f348d0-1150-4b69-a6a8-49c9464c9ecd] ONLINE for camera 0
D/UseCaseAttachState: Active and online use case: [] for camera: 0
D/Camera: Resetting Capture Session
D/Camera: Opening camera: 0
D/UseCaseAttachState: All use case: [androidx.camera.core.ImageAnalysis-4131991d-3026-4a80-81e7-360e4f793ea3, androidx.camera.core.Preview-b9f348d0-1150-4b69-a6a8-49c9464c9ecd] for camera: 0
I/CameraManager: open camera: 0, package name: com.wzt.yolov5
D/DecorView: showOrHideHighlightView: hasFocus=true; winMode=1; isMrgNull=true
W/InputMethodManager: startInputReason = 1
W/HwRemoteInputMethodManager: isCasting false because IHwDistributedWindowManager is invalid.
D/Camera: Use case ImageAnalysis:androidx.camera.core.ImageAnalysis-4131991d-3026-4a80-81e7-360e4f793ea3 ACTIVE for camera 0
D/UseCaseAttachState: Active and online use case: [androidx.camera.core.ImageAnalysis-4131991d-3026-4a80-81e7-360e4f793ea3] for camera: 0
D/Camera: Use case Preview:androidx.camera.core.Preview-b9f348d0-1150-4b69-a6a8-49c9464c9ecd ACTIVE for camera 0
D/UseCaseAttachState: Active and online use case: [androidx.camera.core.ImageAnalysis-4131991d-3026-4a80-81e7-360e4f793ea3, androidx.camera.core.Preview-b9f348d0-1150-4b69-a6a8-49c9464c9ecd] for camera: 0
D/Camera: CameraDevice.onOpened(): 0
D/UseCaseAttachState: All use case: [androidx.camera.core.ImageAnalysis-4131991d-3026-4a80-81e7-360e4f793ea3, androidx.camera.core.Preview-b9f348d0-1150-4b69-a6a8-49c9464c9ecd] for camera: 0
D/CaptureSession: Opening capture session.
D/CaptureSession: Attempting to send capture request onConfigured
    Issuing request for session.
D/CaptureSession: CameraCaptureSession.onConfigured() mState=OPENED
D/CaptureSession: CameraCaptureSession.onReady()
W/Gralloc3: allocator 3.x is not supported
W/libEGL: EGLNativeWindowType 0x7838a42950 disconnect failed
D/skia: onFlyCompress
D/HwGalleryCacheManagerImpl: mIsEffect:false
A/libc: Fatal signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x7794200000 in tid 19342 (pool-2-thread-1), pid 19147 (com.wzt.yolov5)
D/ActivityThread: Won't deliver top position change in state=5

这是我模型输出的修改：

// EfficientNet
ex.input("x.1", in);
ex.extract("5322", maskmaps);
ex.extract("5519", location);
ex.extract("5521", mask);
ex.extract("5523", confidence);