visual studio code java import cannot be resolved

Unload the modeling project by right clicking on it in Solution Explorer window and choosing Unload Project.The simplest workaround is to edit the modeling project file to ignore target framework version mismatches as follows: The error occurs when the build version is a higher version number than the version that was pre-installed with the version of Visual Studio. NET Framework version numbers may vary, and may include version numbers such as v4.5.2, 4.5.3, 4.6, or higher. This is a higher version than the currently targeted framework “.NETFramework,Version=v4.5.1”. The primary reference “” could not be resolved because it was built against the “.NETFramework,Version=v4.5.2” framework. In Visual Studio 2012, the message will be similar to this: This issue does not affect Visual Studio 2015.

When you validate your application architecture in Visual Studio using the modeling tools available from the Architecture menu in Enterprise versions of Visual Studio 20, you may see an error message that the primary reference could not be resolved, and the validation will not proceed.

Visual studio code java import cannot be resolved