debugType "full" does not work on OS X

Steps to reproduce

1. On OS X, check out this GitHub project at this commit
2. Run this command: dotnet restore
3. Run this command: dotnet test ./test/CoreMatchers.Tests/project.json

Expected behavior

Compilation should succeed.

Actual behavior

[master]bherman-mbp:~/development/side_projects/CoreMatchers
$ dotnet restore
log  : Restoring packages for /Users/bherman/development/side_projects/CoreMatchers/src/CoreMatchers/project.json...
log  : Restoring packages for /Users/bherman/development/side_projects/CoreMatchers/test/CoreMatchers.Tests/project.json...
log  : Lock file has not changed. Skipping lock file write. Path: /Users/bherman/development/side_projects/CoreMatchers/src/CoreMatchers/project.lock.json
log  : /Users/bherman/development/side_projects/CoreMatchers/src/CoreMatchers/project.json
log  : Restore completed in 314ms.
log  : Writing lock file to disk. Path: /Users/bherman/development/side_projects/CoreMatchers/test/CoreMatchers.Tests/project.lock.json
log  : /Users/bherman/development/side_projects/CoreMatchers/test/CoreMatchers.Tests/project.json
log  : Restore completed in 508ms.
[master]bherman-mbp:~/development/side_projects/CoreMatchers
$ dotnet test ./test/CoreMatchers.Tests/project.json
Project CoreMatchers (.NETStandard,Version=v1.6) will be compiled because Input items removed from last build
Compiling CoreMatchers for .NETStandard,Version=v1.6
/usr/local/share/dotnet/dotnet compile-csc @/Users/bherman/development/side_projects/CoreMatchers/src/CoreMatchers/obj/Debug/netstandard1.6/dotnet-compile.rsp returned Exit Code 1
/Users/bherman/development/side_projects/CoreMatchers/src/CoreMatchers/error CS0041: Unexpected error writing debug information -- 'Windows PDB writer is not available -- could not find Microsoft.DiaSymReader.Native.amd64.dll'

Compilation failed.
    0 Warning(s)
    1 Error(s)

Time elapsed 00:00:00.9106075

SUMMARY: Total: 1 targets, Passed: 0, Failed: 1.

Environment data

dotnet --info output:

.NET Command Line Tools (1.0.0-preview2-1-003177)

Product Information:
 Version:            1.0.0-preview2-1-003177
 Commit SHA-1 hash:  a2df9c2576

Runtime Environment:
 OS Name:     Mac OS X
 OS Version:  10.12
 OS Platform: Darwin
 RID:         osx.10.12-x64

Notes

The issue is the here where it says, "debugType": "full",. Changing this line to "debugType": "portable", allows the compilation to succeed.

[TheRealPiotrP]

We should consider adding a persistent warning if debugType is not portable, off only if the project targets Desktop TFMs only.

[jpopadak]

Honestly, I don’t care what the error message states. As long at it explains that the debutType of full is not supported for non-windows machines. It would have saved my friend hours of searching the web…

@TimeDelta works strictly on Mac OS, I have someone else who works strictly on Linux, and I work strictly on Windows. They both had the same issue except for me. I thought their CLI tools were broken.

Once I realized that it was attempting to write out the PDB file, I told them to switch up the debugType and it all started working again.

The error message of CS0041: Unexpected error writing debug information -- 'Windows PDB writer is not available -- could not find Microsoft.DiaSymReader.Native.amd64.dll' simply isn’t detailed enough to explain to first time users of .NET / .NET Core when coming from a Java background.