Type unification in Microsoft.Bcl fails

Type unification in Microsoft.Bcl fails by Stephen Cleary

Closed

as Fixed

Type:	Bug
ID:	773453
Opened:	12/4/2012 1:25:21 PM
Access Restriction:	Public

Workaround(s)

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User(s) can reproduce this bug

If a non-portable library (e.g., net45) references a portable library that returns a type provided by Microsoft.Bcl, then I get the following errors:

...\PortableClassLibrary1.dll : warning CS1684: Reference to type 'System.Tuple`2' claims it is defined in 'd:\Temp\Projects\ClassLibrary5\packages\Microsoft.Bcl.1.0.11-beta\lib\net40\System.Runtime.dll', but it could not be found
...\ClassLibrary1\Class1.cs(12,20,12,61): error CS0570: 'PortableClassLibrary1.Class1.Test()' is not supported by the language

Details (expand)

Visual Studio 2012

1) Create a portable library (win8+net4+sl4+wp71).
2) Install Microsoft.Bcl 1.0.11-beta.
3) Create a method returning Tuple<int, int>.
4) Create a non-portable library (net45).
5) Reference the portable library.
6) Create a method returning Tuple<int, int> which just calls into the portable library's method.
7) Attempt to compile.

English

Windows 7 SP1

English

Error messages:

...\PortableClassLibrary1.dll : warning CS1684: Reference to type 'System.Tuple`2' claims it is defined in 'd:\Temp\Projects\ClassLibrary5\packages\Microsoft.Bcl.1.0.11-beta\lib\net40\System.Runtime.dll', but it could not be found
...\ClassLibrary1\Class1.cs(12,20,12,61): error CS0570: 'PortableClassLibrary1.Class1.Test()' is not supported by the language

Compiles successfully.

0 attachments

Posted by Microsoft on 1/8/2013 at 3:05 PM

Thanks for the bug report, I've confirmed that this is a real issue - we're missing a type forward in System.Runtime.dll for Tuple<T1, T2>.

This will be fixed by the next update of the package.

Posted by Microsoft on 12/10/2012 at 2:26 AM

Thanks for your response. We are rerouting this issue to the appropriate group within the Visual Studio Product Team for triage and resolution. These specialized experts will follow-up with your issue.

Posted by Stephen Cleary on 12/5/2012 at 5:27 AM

OK, I uploaded it to:

https://sftus.one.microsoft.com/choosetransfer.aspx?key=9415c965-6590-4d5f-8331-614ff9c106df
Password: Z1_)G37MTk

Posted by Microsoft on 12/4/2012 at 7:07 PM

Thank you for submitting feedback on Visual Studio and .NET Framework. In order to efficiently investigate and reproduce this issue, we are requesting additional information outlined below.

Could you please give us a demo project to demonstrate this issue so that we can conduct further research?

Please submit this information to us within 4 business days. We look forward to hearing from you with this information.

Microsoft Visual Studio Connect Support Team

Posted by Microsoft on 12/4/2012 at 1:51 PM

Thank you for your feedback, we are currently reviewing the issue you have submitted. If this issue is urgent, please contact support directly(http://support.microsoft.com)