I am getting the below exception from the Xam.Plugin.LatestVersion plugin on my xamarin forms app:
Plugin.LatestVersion.LatestVersionException: Error comparing current app version number with latest.
I found the same issue reported over here and here on GitHub. Also, the same issue is reported on the stack. I tried the solutions suggested on the above thread, but no luck.
I have updated my plugin version to the latest(2.1.0), but the same exception is showing. Any solution for this issue? The issue is only on the Android platform.
Update:
I have tried the 2.1.1-beta.107 version, now getting another exception.
Plugin.LatestVersion.LatestVersionException: Error parsing content from the Play Store. Url=play store url&hl=en. ---> Jurassic.JavaScriptException: TypeError: undefined cannot be converted to an object
at Jurassic.TypeConverter.ToObject (Jurassic.ScriptEngine engine, System.Object value, System.Int32 lineNumber, System.String sourcePath, System.String functionName) [0x00037] in <018e8bf6db3d46cd85eb0a9bc95f4b3f>:0
at (wrapper dynamic-method) Jurassic.Compiler.MethodGenerator.anonymous(Jurassic.Compiler.ExecutionContext,object[])
at Jurassic.Library.UserDefinedFunction.CallLateBound (System.Object thisObject, System.Object[] argumentValues) [0x00014] in <018e8bf6db3d46cd85eb0a9bc95f4b3f>:0
at Jurassic.Library.FunctionInstance.CallWithStackTrace (System.String path, System.String function, System.Int32 line, System.Object thisObject, System.Object[] argumentValues) [0x0000f] in <018e8bf6db3d46cd85eb0a9bc95f4b3f>:0
at (wrapper dynamic-method) Jurassic.Compiler.MethodGenerator.anonymous(Jurassic.Compiler.ExecutionContext,object[])
at Jurassic.Library.UserDefinedFunction.CallLateBound (System.Object thisObject, System.Object[] argumentValues) [0x00014] in <018e8bf6db3d46cd85eb0a9bc95f4b3f>:0
at Jurassic.Library.FunctionInstance.CallWithStackTrace (System.String path, System.String function, System.Int32 line, System.Object thisObject, System.Object[] argumentValues) [0x0000f] in <018e8bf6db3d46cd85eb0a9bc95f4b3f>:0
at (wrapper dynamic-method) Jurassic.Compiler.MethodGenerator.eval(Jurassic.Compiler.ExecutionContext)
at Jurassic.Compiler.GlobalOrEvalMethodGenerator.Execute (Jurassic.ScriptEngine engine, Jurassic.Compiler.RuntimeScope parentScope, System.Object thisObject) [0x00030] in <018e8bf6db3d46cd85eb0a9bc95f4b3f>:0
at Jurassic.ScriptEngine.Evaluate (Jurassic.ScriptSource source) [0x000a7] in <018e8bf6db3d46cd85eb0a9bc95f4b3f>:0
at Jurassic.ScriptEngine.Evaluate (System.String code) [0x00007] in <018e8bf6db3d46cd85eb0a9bc95f4b3f>:0
at Plugin.LatestVersion.LatestVersionImplementation.GetLatestVersionNumber () [0x001ff] in <7361502664264164a28b556feec777a7>:0
--- End of inner exception stack trace ---
at Plugin.LatestVersion.LatestVersionImplementation.GetLatestVersionNumber () [0x0023d] in <7361502664264164a28b556feec777a7>:0
Related
I've gone through the example event-tracing projects located at https://github.com/microsoft/eventtracing-processing-samples and successfully built the projects. I'm running into missing dll's. For instance when running the CountProcesses example, I run into the following stack trace:
mono CountProcesses.exe test.etl
Unhandled Exception:
System.DllNotFoundException: msi.dll assembly:<unknown assembly> type:<unknown type> member:(null)
at (wrapper managed-to-native) Microsoft.Windows.EventTracing.NativeMethods.MsiGetSummaryInformationW(uint,string,uint,uint&)
at Microsoft.Windows.EventTracing.ToolkitTraceProcessingEngine.GetRevisionNumber (System.String msiPath) [0x00000] in <bdfe3783769b4c6f90b3788d264e0262>:0
at Microsoft.Windows.EventTracing.ToolkitTraceProcessingEngine.GetOrCreateDefaultToolkitPath (System.IO.TextWriter output) [0x00054] in <bdfe3783769b4c6f90b3788d264e0262>:0
at Microsoft.Windows.EventTracing.ToolkitTraceProcessingEngine.Create (System.String path, Microsoft.Windows.EventTracing.ITraceProcessorSettings settings, Microsoft.Windows.EventTracing.ITraceProcessorSettings& effectiveSettings) [0x000a8] in <bdfe3783769b4c6f90b3788d264e0262>:0
at Microsoft.Windows.EventTracing.TraceProcessor.Create (System.String path, Microsoft.Windows.EventTracing.ITraceProcessorSettings settings) [0x00000] in <bdfe3783769b4c6f90b3788d264e0262>:0
at Microsoft.Windows.EventTracing.TraceProcessor.Create (System.String path) [0x00000] in <bdfe3783769b4c6f90b3788d264e0262>:0
at Program.Run (System.String tracePath) [0x00001] in <2e2989aba7be4139841be131a5e978bb>:0
at Program.Main (System.String[] args) [0x00027] in <2e2989aba7be4139841be131a5e978bb>:0
[ERROR] FATAL UNHANDLED EXCEPTION: System.DllNotFoundException: msi.dll assembly:<unknown assembly> type:<unknown type> member:(null)
at (wrapper managed-to-native) Microsoft.Windows.EventTracing.NativeMethods.MsiGetSummaryInformationW(uint,string,uint,uint&)
at Microsoft.Windows.EventTracing.ToolkitTraceProcessingEngine.GetRevisionNumber (System.String msiPath) [0x00000] in <bdfe3783769b4c6f90b3788d264e0262>:0
at Microsoft.Windows.EventTracing.ToolkitTraceProcessingEngine.GetOrCreateDefaultToolkitPath (System.IO.TextWriter output) [0x00054] in <bdfe3783769b4c6f90b3788d264e0262>:0
at Microsoft.Windows.EventTracing.ToolkitTraceProcessingEngine.Create (System.String path, Microsoft.Windows.EventTracing.ITraceProcessorSettings settings, Microsoft.Windows.EventTracing.ITraceProcessorSettings& effectiveSettings) [0x000a8] in <bdfe3783769b4c6f90b3788d264e0262>:0
at Microsoft.Windows.EventTracing.TraceProcessor.Create (System.String path, Microsoft.Windows.EventTracing.ITraceProcessorSettings settings) [0x00000] in <bdfe3783769b4c6f90b3788d264e0262>:0
at Microsoft.Windows.EventTracing.TraceProcessor.Create (System.String path) [0x00000] in <bdfe3783769b4c6f90b3788d264e0262>:0
at Program.Run (System.String tracePath) [0x00001] in <2e2989aba7be4139841be131a5e978bb>:0
at Program.Main (System.String[] args) [0x00027] in <2e2989aba7be4139841be131a5e978bb>:0
Before digging too deeply into the missing libraries, is traceprocessing intended to be cross-platform? Or does it rely on platform dependent libs in Windows?
System Setup:
OS: macOS Catalina 10.15.4
Mono JIT compiler version 6.8.0.105 (2019-10/82fffe07497 Tue Feb 4 10:09:51 EST 2020)
.NET Core SDK (3.1.201)
(I am a developer at Microsoft who works on the TraceProcessor project.)
Currently, the library relies on some Windows-only components and cannot be run on a Mac.
We are using Entity Framework Core 2.2.4 together with an SQLite database targeting .NET Framework 4.7.2. Following Nuget packages were installed:
Microsoft.Data.Sqlite
Microsoft.EntityFrameworkCore.Sqlite
Microsoft.EntityFrameworkCore.Tools
On my development machine (Windows 10) everything works fine but when trying to run the application with Mono on our 32-bit Linux machine, the following exception occurs:
FATAL UNHANDLED EXCEPTION: System.TypeInitializationException: The type
initializer for 'Microsoft.Data.Sqlite.SqliteConnection' threw an exception.
---> System.Reflection.TargetInvocationException: Exception has been thrown
by the target of an invocation. ---> System.DllNotFoundException: e_sqlite3
at (wrapper managed-to-native)
SQLitePCL.SQLite3Provider_e_sqlite3+NativeMethods.sqlite3_libversion_number()
at SQLitePCL.SQLite3Provider_e_sqlite3.SQLitePCL.ISQLite3Provider.sqlite3_libversion_number () [0x00000] in <61bb3ca1db9c41ea88f280f0b1600d58>:0
at SQLitePCL.raw.SetProvider (SQLitePCL.ISQLite3Provider imp) [0x00008] in <3d4b21fb9c764efbb11f6e3b02efff52>:0
at SQLitePCL.Batteries_V2.Init () [0x00005] in <f5d9c86a14864b5d99b8bdece1b8292c>:0
at (wrapper managed-to-native) System.Reflection.MonoMethod.InternalInvoke(System.Reflection.MonoMethod,object,object[],System.Exception&)
at System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00032] in <a89b9d7c1a66468eb33312af7ed3a74e>:0
--- End of inner exception stack trace ---
at System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00048] in <a89b9d7c1a66468eb33312af7ed3a74e>:0
at System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) [0x00000] in <a89b9d7c1a66468eb33312af7ed3a74e>:0
at Microsoft.Data.Sqlite.Utilities.BundleInitializer.Initialize () [0x0002f] in <b46e232ade014524baa458345f270c50>:0
at Microsoft.Data.Sqlite.SqliteConnection..cctor () [0x00000] in <b46e232ade014524baa458345f270c50>:0
--- End of inner exception stack trace ---
at (wrapper managed-to-native) System.Object.__icall_wrapper_mono_generic_class_init(intptr)
at Microsoft.EntityFrameworkCore.Sqlite.Storage.Internal.SqliteRelationalConnection.CreateDbConnection () [0x00006] in <74192050a4d342039620dc7ef6678f71>:0
at Microsoft.EntityFrameworkCore.Internal.LazyRef`1[T].get_Value () [0x00008] in <adf771f92e754fe1bb85c5850cd0c16b>:0
at Microsoft.EntityFrameworkCore.Storage.RelationalConnection.get_DbConnection () [0x00000] in <69f795dffc844780bfcfff4ff8415a92>:0
at Microsoft.EntityFrameworkCore.Storage.RelationalConnection.Open (System.Boolean errorsExpected) [0x00000] in <69f795dffc844780bfcfff4ff8415a92>:0
at Microsoft.EntityFrameworkCore.Sqlite.Storage.Internal.SqliteRelationalConnection.Open (System.Boolean errorsExpected) [0x00000] in <74192050a4d342039620dc7ef6678f71>:0
at Microsoft.EntityFrameworkCore.Sqlite.Storage.Internal.SqliteDatabaseCreator.Exists () [0x0000c] in <74192050a4d342039620dc7ef6678f71>:0
at Microsoft.EntityFrameworkCore.Migrations.HistoryRepository.Exists () [0x0000b] in <69f795dffc844780bfcfff4ff8415a92>:0
at Microsoft.EntityFrameworkCore.Migrations.Internal.Migrator.Migrate (System.String targetMigration) [0x00012] in <69f795dffc844780bfcfff4ff8415a92>:0
at Microsoft.EntityFrameworkCore.RelationalDatabaseFacadeExtensions.Migrate (Microsoft.EntityFrameworkCore.Infrastructure.DatabaseFacade databaseFacade) [0x00010] in <69f795dffc844780bfcfff4ff8415a92>:0
at TestEfCorePlusSqlite.Program.Main (System.String[] args) [0x0000e] in <c4fad569c9a241ef887b5b2ddbc0225f>:0
Since the application is built with Any CPU configuration, x86 and x64 folders are created in bin/Debug, both containing an e_sqlite3.dll. I already tried to copy the x86 dll to bin/Debug but the error still occurred.
What I've tried so far:
installing Microsoft.EntityFrameworkCore.Sqlite.Core together with
SQLitePCLRaw.bundle_e_sqlite3 as suggested here
installing Microsoft.EntityFrameworkCore.Sqlite (or
Microsoft.Data.Sqlite or SQLitePCLRaw.bundle_green) as suggested here
different combinations of SQLitePCLRaw.* packages
What do I have to do to get EF Core and SQlite running on Mono?
After a refreshing weekend I took another glance at the problem. I found the official Mono documentation regarding DllNotFoundException and used MONO_LOG_LEVEL=debug mono YourApp.exe to find out which lib Mono is trying to load. It was /usr/lib/libe_sqlite3.so which was not available on my system. All I did was to copy the available /usr/lib/libsqlite3.so and rename it to libe_sqlite3.so. I'm not sure if this is the preferred way but my application works.
I have built a Xamarin forms app with PCL.
The application crashes sometimes for unknown reason : either while scrolling though any of the picker on some pages of the application or while resuming the app after some period of inactivity (may be after 10-15 mins).
I am using Crittercism to report crash logs. I am not getting any stack trace or crash log for this crashes.
Details
Xamarin Studio : 5.9.5(biuld 9)
Xamarin.iOS : Version: 8.10.4.46 (Enterprise Edition)
Xamarin.Android : Version: 5.1.5.3 (Enterprise Edition).
Note : When I was checking in debug mode with device connected : I got 2 kinds of crashes which says :
1.
at System.ThrowHelper.ThrowKeyNotFoundException () [0x00000] in /Users/builder/data/lanes/1977/2c66d2fe/source/mono/external/referencesource/mscorlib/system/throwhelper.cs:70
at System.Collections.Generic.Dictionary`2[System.String,Xamarin.Forms.AnimationExtensions+Info].get_Item (System.String key) [0x00000] in :0
at Xamarin.Forms.AnimationExtensions.HandleTweenerUpdated (System.Object o, System.EventArgs args) [0x00012] in :0
at Xamarin.Forms.Tweener.b__0 (Int64 step) [0x00037] in :0
at Xamarin.Forms.Ticker.SendSignals (Int32 timestep) [0x00063] in :0
at Xamarin.Forms.Platform.iOS.CADisplayLinkTicker.b__0 () [0x00000] in :0
at Foundation.NSActionDispatcher.Apply () [0x00000] in /Users/builder/data/lanes/1977/2c66d2fe/source/maccore/src/Foundation/NSAction.cs:56
at (wrapper managed-to-native) UIKit.UIApplication:UIApplicationMain (int,string[],intptr,intptr)
at UIKit.UIApplication.Main (System.String[] args, IntPtr principal, IntPtr delegate) [0x00005] in /Users/builder/data/lanes/1977/2c66d2fe/source/maccore/src/UIKit/UIApplication.cs:63
at UIKit.UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) [0x0001c] in /Users/builder/data/lanes/1977/2c66d2fe/source/maccore/src/UIKit/UIApplication.cs:46
at eRedbook.iOS.Application.Main (System.String[] args) [0x00008] in /Users/s.chandraganesh/Documents/TFS_New/eRedbook/Development/Source/Mobile/iOS/Main.cs:39
Got a SIGSEGV while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries
used by your application.
Please help me to narrow down this issue.
This should be fixed in Xamarin.Forms 1.5.1.6471. Which version are you running on? Upgrading may fix the issue.
I'm trying out all kind of new features of asp.net 5 and documenting it and now I hit the first obstacle. I can't get my code to run in a docker container, I'm not even trying to get the container to listen to changes, I just want it to run.
I've based my image on microsoft/aspnet and added code to install node, npm, bower and grunt so I can build the application in the container. I know I probably can build it in the client before I add it to the container, but I want to give this a try. The image builds fine, but when I start the container it can't find Kestrel.
System.IO.FileNotFoundException: Could not load file or assembly 'Kestrel' or one of its dependencies. The system cannot find the file specified.
File name: 'Kestrel'
at System.AppDomain.Load (System.Reflection.AssemblyName assemblyRef, System.Security.Policy.Evidence assemblySecurity) [0x00000] in <filename unknown>:0
at (wrapper remoting-invoke-with-check) System.AppDomain:Load (System.Reflection.AssemblyName,System.Security.Policy.Evidence)
at System.AppDomain.Load (System.Reflection.AssemblyName assemblyRef) [0x00000] in <filename unknown>:0
at (wrapper remoting-invoke-with-check) System.AppDomain:Load (System.Reflection.AssemblyName)
at System.Reflection.Assembly.Load (System.Reflection.AssemblyName assemblyRef) [0x00000] in <filename unknown>:0
at Microsoft.AspNet.Hosting.Server.ServerLoader.LoadServerFactory (System.String serverFactoryIdentifier) [0x00000] in <filename unknown>:0
at Microsoft.AspNet.Hosting.HostingEngine.EnsureServerFactory (Microsoft.AspNet.Hosting.HostingContext context) [0x00000] in <filename unknown>:0
at Microsoft.AspNet.Hosting.HostingEngine.Start (Microsoft.AspNet.Hosting.HostingContext context) [0x00000] in <filename unknown>:0
at Microsoft.AspNet.Hosting.Program.Main (System.String[] args) [0x00000] in <filename unknown>:0
at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&)
at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0
Shouldn't Kestrel already exist since I base it on microsoft/aspnet?
The code to my Dockerfile: https://github.com/mastoj/OneManBlog/blob/master/src/OneManBlog/Dockerfile
The microsoft/aspnet base image (https://github.com/aspnet/aspnet-docker/blob/master/1.0.0-beta4/Dockerfile) only gives you the minimum distro needed to run Kestrel, including dnvm and the latest dnx, but NOT Kestrel itself. Add the Kestrel NuGet package to the dependencies in your project.json and build the docker image again:
"dependencies": {
"Microsoft.AspNet.Mvc": "6.0.0-beta4",
"Microsoft.AspNet.Server.IIS": "1.0.0-beta4",
"Microsoft.AspNet.StaticFiles": "1.0.0-beta4",
"Microsoft.AspNet.Server.WebListener": "1.0.0-beta4",
"Microsoft.AspNet.Hosting": "1.0.0-beta4",
"Kestrel": "1.0.0-beta4"
}
EDIT: Did a test on your repo and that made it work :)
I need help figuring out what's wrong in my mono setup. I get NullReferenceExceptions when I try to run webforms and mvc3 apps on apache/mod_mono.
Here's the exceptions I get to httpd error log when trying to load pages on a browser:
Accessing a web forms page:
An exception has occurred while generating HttpException page:
System.NullReferenceException: Object reference not set to an instance of an object
at System.Web.Util.HttpEncoder.GetCustomEncoderFromConfig () [0x00000] in <filename unknown>:0
at System.Lazy`1[System.Web.Util.HttpEncoder].InitValue () [0x00000] in <filename unknown>:0
The actual exception which was being reported was:
System.Web.HttpException: ---> System.NullReferenceException: Object reference not set to an instance of an object
at System.Web.HttpApplication.InitOnce (Boolean full_init) [0x00000] in <filename unknown>:0
--- End of inner exception stack trace ---
An exception has occurred while generating HttpException page:
System.NullReferenceException: Object reference not set to an instance of an object
at System.Web.Util.HttpEncoder.GetCustomEncoderFromConfig () [0x00000] in <filename unknown>:0
at System.Lazy`1[System.Web.Util.HttpEncoder].InitValue () [0x00000] in <filename unknown>:0
The actual exception which was being reported was:
System.Web.HttpException: Server cannot flush a completed response
at System.Web.HttpResponse.Flush (Boolean final_flush) [0x00000] in <filename unknown>:0
at System.Web.HttpApplication.OutputPage () [0x00000] in <filename unknown>:0
Accessing a mvc3 page:
An exception has occurred while generating HttpException page:
System.NullReferenceException: Object reference not set to an instance of an object
at System.Web.Util.HttpEncoder.GetCustomEncoderFromConfig () [0x00000] in <filename unknown>:0
at System.Lazy`1[System.Web.Util.HttpEncoder].InitValue () [0x00000] in <filename unknown>:0
The actual exception which was being reported was:
System.Web.HttpException: ---> System.NullReferenceException: Object reference not set to an instance of an object
at System.Web.Compilation.BuildManager.Build (System.Web.VirtualPath vp) [0x00000] in <filename unknown>:0
at System.Web.Compilation.BuildManager.GetCompiledType (System.Web.VirtualPath virtualPath) [0x00000] in <filename unknown>:0
at System.Web.Compilation.BuildManager.GetCompiledType (System.String virtualPath) [0x00000] in <filename unknown>:0
at System.Web.HttpApplicationFactory.InitType (System.Web.HttpContext context) [0x00000] in <filename unknown>:0
--- End of inner exception stack trace ---
Another symptom is similar exceptions when I run xsp4:
xsp4
Exception caught during reading the configuration file:
System.NullReferenceException: Object reference not set to an instance of an object
at Mono.WebServer.XSP.Server+ApplicationSettings..ctor () [0x00000] in <filename unknown>:0
xsp4
Listening on address: 0.0.0.0
Root directory: /usr/local/src
Listening on port: 8080 (non-secure)
Hit Return to stop the server.
Stopping the server will not cause exceptions here. I wonder if the root directory here is correct? Which configuration file is xsp trying to read?
And here's data on versions etc:
Compiled mono, mod_mono and xsp from git using prefix /usr, versions are:
mono -V
Mono JIT compiler version 3.4.1 (master/d3e5522 Fri May 9 20:16:07 MSD 2014)
Copyright (C) 2002-2014 Novell, Inc, Xamarin Inc and Contributors. www.mono-project.com
TLS: __thread
SIGSEGV: altstack
Notifications: epoll
Architecture: x86
Disabled: none
Misc: softdebug
LLVM: supported, not enabled.
GC: sgen
mod-mono-server4 --version
mod-mono-server4.exe 3.0.0.0
(c) (c) 2002-2011 Novell, Inc.
Mod_mono backend for XSP
mod-mono-server4 file content:
exec /usr/bin/mono $MONO_OPTIONS "/usr/lib/mono/4.5/mod-mono-server4.exe" "$#"
xsp4 --version
xsp4.exe 3.0.0.0
Copyright (C) 2002-2011 Novell, Inc.
Minimalistic web server for testing System.Web
Can you guys spot anything that's wrong here? What could I do to fix this problem? I haven't found anything usable so far.
I did find this with same kind of exception described, but in my case xsp is not an old version.
https://www.meebey.net/posts/mono_3.0_preview_debian_ubuntu_packages/