Visual Studio 2017 Cordova App The project system has encountered an error

Question

I have a HTML5/JavaScript Cordova application and when I start it this message error comes up (sometimes just one time, sometimes twice).

Here's the text in the .txt file:

6/25/2018 3:13:54 PM Recoverable System.NullReferenceException: Object reference not set to an instance of an object. at Microsoft.VisualStudio.MultiDeviceHybridApps.VSPackages.Common.MSBuildEventHandler.d__8.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Microsoft.VisualStudio.ProjectSystem.VS.Implementation.Build.VsOutputWindowLogger.d__19.MoveNext() --- End of stack trace from previous location where exception was thrown --- at Microsoft.VisualStudio.Telemetry.WindowsErrorReporting.WatsonReport.GetClrWatsonExceptionInfo(Exception exceptionObject)

6/25/2018 3:13:54 PM Recoverable System.NullReferenceException: Object reference not set to an instance of an object. at Microsoft.VisualStudio.MultiDeviceHybridApps.VSPackages.Common.MSBuildEventHandler.d__8.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Microsoft.VisualStudio.ProjectSystem.VS.Implementation.Build.VsOutputWindowLogger.d__19.MoveNext() --- End of stack trace from previous location where exception was thrown --- at Microsoft.VisualStudio.Telemetry.WindowsErrorReporting.WatsonReport.GetClrWatsonExceptionInfo(Exception exceptionObject)

6/25/2018 3:13:54 PM Recoverable System.NullReferenceException: Object reference not set to an instance of an object. at Microsoft.VisualStudio.MultiDeviceHybridApps.VSPackages.Common.MSBuildEventHandler.d__8.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Microsoft.VisualStudio.ProjectSystem.VS.Implementation.Build.VsOutputWindowLogger.d__19.MoveNext() --- End of stack trace from previous location where exception was thrown --- at Microsoft.VisualStudio.Telemetry.WindowsErrorReporting.WatsonReport.GetClrWatsonExceptionInfo(Exception exceptionObject)

6/25/2018 3:13:54 PM Recoverable System.NullReferenceException: Object reference not set to an instance of an object. at Microsoft.VisualStudio.MultiDeviceHybridApps.VSPackages.Common.MSBuildEventHandler.d__8.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Microsoft.VisualStudio.ProjectSystem.VS.Implementation.Build.VsOutputWindowLogger.d__19.MoveNext() --- End of stack trace from previous location where exception was thrown --- at Microsoft.VisualStudio.Telemetry.WindowsErrorReporting.WatsonReport.GetClrWatsonExceptionInfo(Exception exceptionObject)

I'm using Visual Studio 2017 Professional Edition 15.7.4

After clicking OK once or twice, everything goes back to normal, how can I get rid of this message?

Try reinstalling Visual Studio because there are not many other options in this case. — andreszs

Chathura Edirisinghe Chathura Edirisinghe · Accepted Answer · 2018-08-10T04:05:37

first check all the references for Android Home, Java Home and npm. then try changing your .jsproj file in Notepad like

this

<PropertyGroup>
<TypeScriptCompileOnSaveEnabled>false</TypeScriptCompileOnSaveEnabled></PropertyGroup>

to

<PropertyGroup>
<TypeScriptCompileBlocked>True</TypeScriptCompileBlocked>
<TypeScriptCompileOnSaveEnabled>false</TypeScriptCompileOnSaveEnabled</PropertyGroup>

if it didn't do it then try repair your vs installation.

Visual Studio 2017 Cordova App The project system has encountered an error

1 Answers