error MSB4018: The "PackageRetrievalTask" task failed unexpectedly

[jackyuan00]

When i am using msbuild command line to build my csproj. I encountered error message as below :
Baseclass.Contrib.Nuget.Output.2.4.3\build\Baseclass.Contrib.Nuget.Output.targets(65,5): error MSB4018: The "PackageRetrievalTask" task failed unexpectedly.

Could anyone help on this please?