When i run my android application it shows an exception "android runtime exception" with a message "Error: thread attach failed". it happens before the execution of "OnCreate" mathod of main class. what will be reason for that error?? anybody please help.
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We are getting the following exception when running the DexParser via Flank:
Exception in thread "main" com.linkedin.dex.spec.DexException: invalid LEB128 sequence
at com.linkedin.dex.spec.Leb128$Companion.readUnsignedLeb128(Leb128.kt:26)
at com.linkedin.dex.parser.DecodedValue$Companion.create(DecodedValue.kt:56)
at com.linkedin.dex.parser.AnnotationUtilsKt.getTestAnnotation(AnnotationUtils.kt:70)
at com.linkedin.dex.parser.AnnotationUtilsKt.getClassAnnotationValues(AnnotationUtils.kt:46)
at com.linkedin.dex.parser.TestMethodKt.createTestMethods(TestMethod.kt:42)
at com.linkedin.dex.parser.JUnit4ExtensionsKt.findAllJUnit4Tests(JUnit4Extensions.kt:35)
at com.linkedin.dex.parser.DexParser$Companion.findTestMethods(DexParser.kt:60)
at com.linkedin.dex.parser.DexParser$Companion.findTestNames(DexParser.kt:45)
at com.linkedin.dex.parser.DexParser$Companion.main(DexParser.kt:36)
at com.linkedin.dex.parser.DexParser.main(DexParser.kt)
A screenshot of the environment when this exception is hit is included below. How would I debug this exception/what would cause this issue?
So I'm trying out xamarin in VS2017, but found this undhandled error:
Unhandled Exception:
Java.Lang.SecurityException: <Timeout exceeded getting exception details>
This is very clueless. How can I get the full information of the runtime error like in Android Studio?
I had the same problem while calling some native API,
solved it by
Put a try catch around the block of got which is throwing the error.
Put a breakpoint in the catch block, you can get actual details of the exception.
After getting assistance from Microsoft, I finally found the solution.
TL;DR
Use VS Android device log and filter with "mono-rt" or "Error"
Complete Answer:
There are 2 solution:
1. Using Android Studio logcat:
Open the Android Studio logcat (View > Tool Windows > Logcat). From the logcat window, choose the device, choose the Xamarin.Android deployed application, and choose logcat for Error
Android logcat will display the runtime error:
2. Using Visual Studio Android Device Log:
Open the Visual Studio Android Device Log(Tools > Android > Device Log).
Here is the tricky bit: Unlike Android Studio, VS list all of the device log, not limited to the Xamarin.Android app deployed. So somehow we have to use the filter to get the relevant information. The problem is, what filter should we use? I used my application name and the error didn't show up. It turns out that when the error happen, the log doesn't contain any of the application name. Instead it has "mono-rt" tag with "Error" type.
So there you have it. Filter it with "mono-rt" tag or "Error" type and you will find the error information
I'm getting this error on Android application. Any explanation?
LogCat simply write the line in red:
03-20 10:31:08.206: E/JavaBinder(2275): Unknown binder error code. 0xfffffff7
nothing else.
EDIT:
Solved. Error arise when I try to unregister a null receiver:
unregisterReceiver(screenStatusReceiver);
if screenStatusReceiver is null I get this error.
I wonder why the Android framework does not tell anything else than an unintelligible message...
EDIT (2):
The unregisterReceiver(screenStatusReceiver); is called from an AsyncTask.run(). Maybe, in this case, the Android framework can't arise a complete error message...
When I return error from linux system calls like create/open etc. in order to fail such operations from my App, complete Android UI crashes. When I investigated more I realized that root cause is the system_server crashing because of my errors from system call.
I tried using errors like EACCESS, EBADF etc but each of these seems to be considered as a fatal exception by Android!
Any idea on non-fatal error values which I can use such that it does not cause Android UI to crash?
When the Eclipse debugger stops due to an exception in my Android project, I can see the exception message in the variables window (e.g., "null pointer"), but how can I find out what Java code line my app was at when the exception occurred?
I can see a stack trace in the LH window, but selecting any of them doesn't seem to reveal anything that relates to my code.
Look in the LogCat view (in Eclipse Window-->Show View-->Other...-->Android-->LogCat) or in the adb logcat output from a terminal. The place to look will likely be the first mention of one of your classes below the line:
E/AndroidRuntime( ####): Caused by: