Method not found IdentityModel.Client. DiscoveryClient.ParseUrl(System.String)

[edtim8]

When I updated to IdentityServer4.AccessTokenValidation 2.1.0, a crisis problem appeared.

fail: Microsoft.AspNetCore.Server.Kestrel[13] Connection id "0HL9P6Q5123R7", Request id "0HL9P6Q5123R7:00000001": An unhandled exception was thrown by the appli cation. System.MissingMethodException: Method not found: 'System.ValueTuple`2<System.String,System.String> IdentityModel.Client. DiscoveryClient.ParseUrl(System.String)'. at IdentityServer4.AccessTokenValidation.IdentityServerAuthenticationOptions.ConfigureJwtBearer(JwtBearerOptions jwtO ptions)

I can't fix it..... help ...

[edtim8]

[brockallen]

Did you mean to close this?

[andymac4182]

We are getting the same issue @brockallen . It appears to be related to .NET 4.7 being installed. Any help would be great.

[leastprivilege]

It's a Microsoft tooling issue. They said they gonna fix it "soon".

[darkurse]

Is there a workaround we can do in the meantime ?

[leastprivilege]

try targeting 461, or 47x or netcoreapp2.0 specifically - can't remember which one.

[darkurse]

Ok this is what I tried :

1. I've been explicitly targeting 461 until now and it is not working now
2. I just installed 47 and no luck
3. I installed 471 afterwards and still no luck
4. I couldn't try target netcoreapp2.0 because of some legacy dependencies of mine.

This started to happen since yesterday where two things happened :

• VS2017 latest update 15.5.1
• Windows mega update

At this point I don't know which one of the two is the culprit.

[leastprivilege]

yea - that's a pretty sad story.

Try targeting the latest 4.7 explicitly.

[leastprivilege]

Let me know if that works.

[darkurse]

It works with 4.7. Sorry for the late answer but I had to extract out the old service bus dependency out of the project in order to be able to compile it ..