Option Severe Intellisense Errors, but Compiled Fine

Question

I just got a new working PC and I'm moving the solution from VS15 to 17.

When I edit existing source files, I get a bunch of errors related to the strict option, which include:

Option Strict On requires all variable declarations to have an 'As' clause
Option Strict On disallows implicit conversions from 'Object' to 'Integer'
Option Strict prohibits operands of type Object for operator '-'
Option Strict On disallows late binding

In addition to this, I get errors regarding not found classes of the system, for example Attribute, NotImplementedExceptionetc.

The Strict parameter is disabled for all solutions in the project.

Errors related to Object to Integer are caused by variables iin loops, where the line foralso has an error stating that late binding is forbidden.

I tried to delete the folder vsin the solution, but that didn't matter.

The project compiles without problems. How can I fix Intellisense errors?

Answer 1

, .suo( sqlite3 ) VB.NET Visual Studio 15.5.

.suo .vs project .

, → → .

, .

( ).

, " ". , intellisense .

, VB.NET .

, . , .

:

Visual Studio (https://developercommunity.visualstudio.com/content/problem/160241/errors-reported-when-none-exist.html). .

" " ( "" > "" > " " > "" ). .

Answer 2

, VS 2017 (v. 15.5.0), .
, VS 15.4 15.5.

.

Allow parallel project initialization ( > > > ). .

(v. 15.5.1).