Crash Info:
BOARD=c72c_37t
BOOTLOADER=unknown
BRAND=wtk
CPU_ABI=arm64-v8a
CPU_ABI2=
CW_MODEL=mtk.6735.c72c
DEVICE=c72
DISPLAY=C72C_MT6737T_V1.1_AS2_GITd1e22dc_20181219
FINGERPRINT=wtk/c72c/c72:6.0/MRA58K/1545222194:user/release-keys
HARDWARE=mt6735
HARDWAREVERSION=unknown
HOST=chainway-PowerEdge-R730
ID=MRA58K
IS_DEBUGGABLE=false
MANUFACTURER=wtk
MODEL=C72
PRODUCT=c72c
RADIO=unknown
SERIAL=HC720C190600226
SUPPORTED_32_BIT_ABIS=[Ljava.lang.String;@74c94a
SUPPORTED_64_BIT_ABIS=[Ljava.lang.String;@4a70bb
SUPPORTED_ABIS=[Ljava.lang.String;@9ad29d8
TAG=Build
TAGS=release-keys
TIME=1545223275000
TYPE=user
UNKNOWN=unknown
USER=hejiang
VERSION_CODE=37
VERSION_NAME=0.3.7-uat
customModelNumber=/data/model

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.etoon.warehouse.pda.uat/com.etoon.warehouse.pda.activity.stockin.PurchaseInDetailActivity}: java.lang.IllegalStateException: Required view 'txt_express_fee' with ID 2131296599 for method 'onTxtExpressFeeChanged' was not found. If this view is optional add '@Nullable' (fields) or '@Optional' (methods) annotation.
	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2589)
	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2671)
	at android.app.ActivityThread.-wrap11(ActivityThread.java)
	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1505)
	at android.os.Handler.dispatchMessage(Handler.java:111)
	at android.os.Looper.loop(Looper.java:207)
	at android.app.ActivityThread.main(ActivityThread.java:5778)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:679)
Caused by: java.lang.IllegalStateException: Required view 'txt_express_fee' with ID 2131296599 for method 'onTxtExpressFeeChanged' was not found. If this view is optional add '@Nullable' (fields) or '@Optional' (methods) annotation.
	at butterknife.internal.Utils.findRequiredView()
	at com.etoon.warehouse.pda.activity.stockin.PurchaseInDetailActivity_ViewBinding.<init>()
	at java.lang.reflect.Constructor.newInstance(Native Method)
	at butterknife.ButterKnife.bind()
	at butterknife.ButterKnife.bind()
	at c.g.a.a.e.a.h.onCreate()
	at com.etoon.warehouse.pda.activity.stockin.PurchaseInDetailActivity.onCreate()
	at android.app.Activity.performCreate(Activity.java:6318)
	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1113)
	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2536)
	... 9 more