When trying to build a solution developed in VS2010, I get the following error in one of the subprojects that depends on a DLL built by another project in the solution, though it seems to have all the project references correctly interpreted by Xamarin Studio (v5.7.0).
/path/to/failing/project/myproject.csproj (Build) ->
/Library/Frameworks/Mono.framework/Versions/3.12.0/lib/mono/4.5/Microsoft.Common.targets (ResolveAssemblyReferences target) ->
/Library/Frameworks/Mono.framework/Versions/3.12.0/lib/mono/4.5/Microsoft.Common.targets: warning : Reference '/path/to/successful/parent/project/library/bin/ReleaseMac//mylibrary.dll' not resolved
After this error, there are subsequent compilation errors like:
The type or namespace name 'MyLibrary' could not be found. Are you missing an assembly reference?
These are presumably related to the fact that the DLL that did not resolve correctly contains that namespace.
Might this also be related to Xamarin not resolving references correctly?
Related
I have a vb.net WinForms project that was originally developed in VS2010, and I'm now trying to work on in VS2015. However, without changing anything, VS2015 will not compile it. It initially returned 2 errors:
Error BC2023 cannot specify both /win32icon and /win32resource
Error BC37216 Conflicting options specified: Win32 resource file; Win32 manifest
I could (temporarily) get rid of the first one by removing the icon specified in Project properties > Application > Icon. But I can't see how to eliminate the second. Googling the second error seems to return nothing meaningful at all.
The error message clearly comes from the VB compiler itself, but I'm not aware, using the IDE, how to "specify" either a manifest or a resource file. I presume the manifest accessed by clicking on Project properties > Application > View Windows Settings is the manifest it refers to. However even temporarily deleting this file had no effect.
Is there any way to resolve this build error?
I have a solution with the following projects:
MySolution.sln
- MySolution.Client.csproj
- MySolution.Service.csproj
- MySolution.Models.csproj
- MySolution.Server.xproj
MySolution.Models is a simple class library which contains shared code that is referenced by MySolution.Client and MySolution.Service - and I would like to reference it in MySolution.Server.
The GUI in VS 2015 RC1 lets me add the reference by right clicking References -> Add Reference. I then see all my projects under Projects -> Solution.
I select MySolution.Models and click Ok, after which I receive the following error in the output log:
Errors in ...PathToSolution\MySolution.Server\project.json
Unable to locate MySolution.Models >= 1.0.0-*
It really feels like this should work, since the GUI allows me to add the reference without any hiccups.
So the first thing to understand is DNX projects have no understanding of traditional .net projects. They don't read or parse csproj files. This is done to keep them cross platform and cross IDE compatible (csproj is a distinctly windows and VS specific thing).
When you add a reference to a "legacy" (I use legacy to mean a .net 4.x csproj based project) behind the scenes the IDE will run dnu wrap but it looks like in your case something broke.
The following should be done automatically.
In solution root global.json a folder "wrap" should be added to the
projects property.
A folder off the root named "wrap" will be created if it doesn't exist.
A /wrap/project.json will be created/updated with a path to the assembly (dll).
Add a reference to the assembly and version to the referencing project's project.json file.
So first thing to check is make sure you have a "wrap" folder and wrap reference in projects property of solution.json. If you don't then likely something "broke". Try removing the reference rebuilding and adding the reference back. Check the build output window for any errors (VS is still RC so there are something error which probably should be halting that are not).
Look for a project.json in the wrap folder. It should look something like this:
{
"version": "1.0.0-*",
"frameworks": {
"net452": {
"wrappedProject": "../../LegacyClassLibrary/LegacyClassLibrary.csproj",
"bin": {
"assembly": "../../LegacyClassLibrary/obj/{configuration}/LegacyClassLibrary.dll",
"pdb": "../../LegacyClassLibrary/obj/{configuration}/LegacyClassLibrary.pdb"
}
}
}
}
Note the framework version. If there is a mismatch then it will fail resolving the dependencies. For example if your MySolution.Models targets .Net 4.6 and thus when wrapped has a dnx46 framework reference but your MySolution.Server project has a reference to dnx452 (in the project.json for MySolution.Server) then it will fail when resolving the dependency to MySolution.Models.
The you quoted could probably be improved. It means that it could not resolve the dependency due to one of the following reasons
It could not find a MySolution.Models assembly (either source code or compiled dll) based on the paths it uses (starting from projects parameter in global.json).
It found a MySolution.Models assembly (either source code or compiled) BUT it was an invalid version. Check version in Models project vs the reference in Server project.json.
It found a MySolution.Models assembly but it can't resolve framework dependencies (i.e. Models requires dnx46 but Server only targets dnx452).
In my experience the third one if the most common. For the DNX templates in VS 2015 RC the default full framework being targeted is dnx452 (or is it dnx451?). New csproj projects will be 4.6 (dnx46) by default and existing projects could be just about anything.
An alternative solution:
I have found the following alternative to result in easier dependency management. If MySolution.Models will only be used by DNX projects then just convert it to a DNX project move it into the source folder and reference it directly. It will be part of the source compilation and you gain the benefits of dynamic compilation.
If MySolution.Models will be referenced by both DNX and legacy (csproj) projects then you can create a side-by-side xproj and project.json files for Models. They will be ignored by the legacy project. In essence you have both a legacy and DNX project using the same source files. You can then just like above reference it directly. Keep in mind the folder structure if the models folder is not under /src (and it probably isn't if this was an existing project) then you will either need to move it or add a reference to the folder in global.json. That sounded more confusing that it really is. Just keep in mind for a DNX project the global.json defines the relative paths to where DNX can find source code. The DNX also can resolve dependencies by nuget or searching the GAC but that is beyond what you are trying to do.
i'm compiling a .net 3.5 solution with msbuild with this line of code:
msbuild.exe n:\temp\Thisnight.sln /p:Configuration=Debug /v:diag
and it gives me this error:
error CS0234: The type or namespace name 'UnitTesting' does not exist in the namespace 'Microsoft.VisualStudio.TestTools' (are you missing an assembly reference?)
i've gotten the latest source which (off course) builds in VS2010 itself.
Can't seem to figure out what i'm missing here....
EDIT
Seeing higher up in the command window this message:
C:\Windows\Microsoft.NET\Framework\v3.5\Microsoft.Common.targets : warning MSB3245: Could not resolve this reference.
Could not locate the assembly "Microsoft.VisualStudio.QualityTools.UnitTestFramework, Version=10.0.0.0, Culture=neutra
l, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL". Check to make sure the assembly exists on disk. If this reference is required by your code, you may get compilation errors.
I don't think i have to include this DLL by my project (because it's a MS dll?)
EDIT
What i've seen now: all projects are for the .Net 3.5 framework, but the testproject (which is the one giving me problems) is for the .Net 4.0 framework.
And the weird thing is: i can't change it.
It's a vs2010 solution with web. webservice,winforms,dll,setup and testprojects
did you run vcvars32.bat in your cmd shell?
If you look at the Microsoft.Common.Targets file you will see :
<!--
The SearchPaths property is set to find assemblies in the following order:
(1) Files from current project - indicated by {CandidateAssemblyFiles}
(2) $(ReferencePath) - the reference path property, which comes from the .USER file.
(3) The hintpath from the referenced item itself, indicated by {HintPathFromItem}.
(4) The directory of MSBuild's "target" runtime from GetFrameworkPath.
The "target" runtime folder is the folder of the runtime that MSBuild is a part of.
(5) Registered assembly folders, indicated by {Registry:*,*,*}
(6) Legacy registered assembly folders, indicated by {AssemblyFolders}
(7) Resolve to the GAC.
(8) Treat the reference's Include as if it were a real file name.
(9) Look in the application's output folder (like bin\debug)
-->
VS runs MSBuild in its own environment, I don't know the differences either but did you try adding the lacking assembly path in command line by modifying the AssemblyFolders items. You have a tuto here : http://www.beefycode.com/post/Resolving-Binary-References-in-MSBuild.aspx .
Hope this helps.
try running:
msbuild /version
Make sure it's the 3.5 version and not something older.
Make sure the MS dll is here, or somewhere like that:
C:\Program Files\Microsoft Visual Studio 10.0\Common7\IDE\PublicAssemblies\Microsoft.VisualStudio.QualityTools.UnitTestFramework.dll
my issue is very similar to:
http://www.dotnetmonster.com/Uwe/Forum.aspx/dotnet-vb/54944/VB-Net-project-throwing-errors-when-executing-Clean-Solution
Typical errors: Unable to load referenced library X
Type IWshRuntimeLibrary.WshShell is not defined.
Interface System.IDisposable is not implemented by this class.
Namespace of type specified in the Imports Z does not contain any public members or cannot be found. Make sure the imported element name does not use any aliases.
This must have to do with a VB.net project configuration. Currently there is a setting "Treat all warnings as errors". I would like to keep that setting, but also resolve these annoying "errors".
I've experienced a similar problem and fixed it by running the following command in the VS command line tool
devenv /resetskippkgs
I'ev had problems executing Clean's via MSBuild in VS2008 when projects were registered for COM interop.
The problem is that the "Clean" target auto-generated for a solution cleans projects in the same order in which they were built.
This causes problems for projects registered for COM when MSBuild attempts to load and then unregister the assembly from COM during a "Clean".The issue occurs if the assembly has a dependency on another project because the dependency will be deleted first and therefore loading the assembly will fail and MSBuild will be unable to unregister it.
A workaround is to change the solution .cache file (which contains the targets auto-generated by MSBuild during "Build") and reverse the order of the "Clean" target. I hacked-together a quick-fix custom build task to do this as a post-build step.
No idea if this was fixed in VS2010 or indeed if this matches your problem since you don't give many specifics in your question ;)
I have a project which uses C++/CLI to implement a GUI and some background processing to talk to a sensor. I've got that all working and a lot of the comms stuff which we use to communicate the the sensor sits in a .dll. The problem is that I'd like to combine the library into the main executable to avoid having to worry about distributing .dlls.
I've got a demo project which works fine using a .lib but when I try and switch the mani code body to produce a .lib instead of .dll I get the following error:
1>------ Build started: Project: MyTool, Configuration: Debug Win32 ------
1>Compiling...
1>stdafx.cpp
1>.\stdafx.cpp : fatal error C1113: #using failed on 'c:\projects\MyTool\debug\MyLib.lib'
A bit of googling suggests this happens when you've not got the MSIL switch applied, but it's definitely in there in the library project.
I have a mixture of managed and unmanaged code in both my demo project and the real thing so I'm really struggling to see what the problem is here.
Any suggestions would be very gratefully received!
I am guessing a bit, but I suspect the "MyTool" project has the "MyLib" project as one of its "references" ("Project" menu >> Properties >> Common Properties >> References).
When you change the type of the MyLib project to a LIB instead of a DLL, you need to remove "MyLib" from the project references. You then update the project dependencies of the solution ("Project" menu >> "Project Dependencies...") so that MyTool depends on MyLib.
If you are linking to a mixed mode (managed/native) DLL you may get this error. Which you shouldn't if the project uses CLR even if one of the source files doesn't. But anyway, if that is the case, then try removing the reference from Project|Properties|Common Properties|References and then re-adding it.
I also ran into this. The reason it was failing was because I was compiling my native/managed C++ DLL to target .NET 4.0. And the DLL I was #using was a .NET 2.0 DLL. As such it was failing, even though the paths and file names lined up perfectly. In this case the error message was absolutely of no help at all.
I solve it by updating the independent DLL to .NET 4.0. So that both assemblies were using the same .NET framework.