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mit-cml / appinventor-extensions

Source code of extensions published for MIT App Inventor
Apache License 2.0
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ClassCastException when using micro:bit with BLE extension #7

Closed ewpatton closed 5 years ago

ewpatton commented 6 years ago

From David Tseng:

Farzeen and I are working on Micro:bit IOpins, but it forced exit the app when Microbit.WritePinData is called -> java.lang.ClassCastException: gnu.mapping.SimpleSymbol cannot be cast to java.lang.Number

23379785_1420461258002517_1780052025_o

When checking the adb log, it seems like something wrong with BluetoothLEint.java (#694, #621). I attach the screenshot and adb log, please take a look of this.

內置圖片 1

​11-06 13:07:20.863  3236  3236 E AndroidRuntime: FATAL EXCEPTION: main
11-06 13:07:20.863  3236  3236 E AndroidRuntime: Process: edu.mit.appinventor.aicompanion3, PID: 3236
11-06 13:07:20.863  3236  3236 E AndroidRuntime: java.lang.ClassCastException: gnu.mapping.SimpleSymbol cannot be cast to java.lang.Number
11-06 13:07:20.863  3236  3236 E AndroidRuntime:    at edu.mit.appinventor.ble.BluetoothLEint$BLEWriteOperation.write(BluetoothLEint.java:694)
11-06 13:07:20.863  3236  3236 E AndroidRuntime:    at edu.mit.appinventor.ble.BluetoothLEint$BLEWriteOperation.run(BluetoothLEint.java:621)
11-06 13:07:20.863  3236  3236 E AndroidRuntime:    at android.os.Handler.handleCallback(Handler.java:739)
11-06 13:07:20.863  3236  3236 E AndroidRuntime:    at android.os.Handler.dispatchMessage(Handler.java:95)
11-06 13:07:20.863  3236  3236 E AndroidRuntime:    at android.os.Looper.loop(Looper.java:168)
11-06 13:07:20.863  3236  3236 E AndroidRuntime:    at android.app.ActivityThread.main(ActivityThread.java:5885)
11-06 13:07:20.863  3236  3236 E AndroidRuntime:    at java.lang.reflect.Method.invoke(Native Method)
11-06 13:07:20.863  3236  3236 E AndroidRuntime:    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:797)
11-06 13:07:20.863  3236  3236 E AndroidRuntime:    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:687)
ewpatton commented 5 years ago

Closed via b1dc03b