While building project in VS2008, I get the error
1>LINK : fatal error LNK1220: '/PGD' requires '/LTCG:[PGINSTRUMENT|PGOPTIMIZE]' specification
It was building fine earlier. I am not sure what I changed in properties and that causing this error now. My Linker -> Optimization settings are such Profile guided database is set to "$(TargetDir)$(TargetName).pgd" and all other fields are set to "Default". Any ideas?
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I have a UWP app that compiles and runs fine in debug mode, but when I compile in x86 release mode, I get the following error:
Severity Code Description Project File Line Source
Error ILT0038: 'Microsoft.CodeAnalysis.Formatting.AutoFormattingOptions' is a value type with a default constructor. Value types with default constructors are not currently supported. Consider using an explicit initialization function instead.
I do have Microsoft.CodeAnalysis analyzers installed, but they should have no effect while compiling, right?
Has anyone seen this before or have any idea how to resolve? Any help appreciated.
I have a Visual Studio linker error that popped up recently. I stumbled upon a workaround but it is driving me crazy that I can't figure out why it is happening in the first place. I need to learn how to better diagnose it.
So my question is not about how to fix it, but how to diagnose it better. In short what I'm trying to learn here is how to get the linker (or some other tool) to tell me more info about the problem. So this question is not about this particular enum or how I coded it exactly.
The project is a C++/CLI project I have a managed enum which I wanted to refer to in several other header files. So I tried to put a forward declaration of it in the shared file that I use for all my other forward declarations. That started giving me this error.
1>profileregioncli.obj : error LNK2022: metadata operation failed (801311E4) : Duplicate managed types have different visibilities.
OK, fine. My forward declaration probably looks different to the linker than the definition. But I cannot see how the declarations are different in code. And technically, since the linker doesn't even bother to tell me exactly what type is involved I cannot even be 100% sure it's this enum.
So how do I determine following two things?
Exactly what symbol is mismatching AND
Exactly what is the difference (to the linker) between the two versions.
Obviously the first item I probably know. The second, not at all.
What I have tried so far
I've tried setting linker output to full verbosity but it doesn't tell me anything new. Here is the full linker output
1>------ Build started: Project: Core.Sdk, Configuration: Release x64 ------
1>Generating code
1>0 of 1470 functions ( 0.0%) were compiled, the rest were copied from previous compilation.
1> 0 functions were new in current compilation
1> 0 functions had inline decision re-evaluated but remain unchanged
1>Finished generating code
1>profileregioncli.obj : error LNK2022: metadata operation failed (801311E4) : Duplicate managed types have different visibilities.
1>LINK : fatal error LNK1255: link failed because of metadata errors
1>Done building project "corecli_v16.vcxproj" -- FAILED.
========== Build: 0 succeeded, 1 failed, 10 up-to-date, 0 skipped ==========
ILDasm Microsoft recommends trying to use ILDasm for this error but that doesn't work. When I tried using it from the command line as they described, it tells me I have to use it interactive mode. When I then try to use it in interactive mode and open up the .OBJ file in question, it wants an .EXE or DLL, not an .OBJ
MAP File I tried changing the linker settings to generate a MAP file but it never does. So I'm guessing thats not generated unless linking is successful.
Change Something, anything Sometimes the best way to figure out an obscure linker error is to make a change -- any change -- to force the linker to give you a different error so I tried changing the managed enum type to derive from System:UInt32 (a valid thing to do which I do with some of my other managed enums) just to see if I would get a different error. And I did get it to tell me that there were two different definitions of the enum in question, but not what they were. But aside from that, no extra information
But this still leads me to want to see the two definitions side-by-side. Not in code but as the linker sees them. How do I do that?
we are facing the below warning in the output window while build our application. How to resolve this kind of exception.
warning : SG0002 : Cannot generate serialization code for type 'XXXX.UI.Xaml.SerializableColumn'
After a several analysis i have tried to Explicitly add reference to System.Runtime.Serialization.Xml 4.0.11-beta-23225 by include the pre-release. But still we got the same one.
Please find our configuration.
Build the application by enabling Native tool chain.
Framework version:4.6 with VS 2015
I've just updated Xcode to version 9 and I've started getting the following error message when compiling:
The issue seems to be linked to compiling with the "Optimization Level" parameter set to "None" (i.e. -O0). If I set this higher the error goes away, BUT when I increase the optimization the debugging tools do not work appropriately (for example variable tracking).
I've looked at other questions that list this error, but they either involve some kind of duplicate '-isystem' or don't involve Xcode at all.
I'm currently compiling a program using an external clang downloaded via macports (port clang-5.0) in order to debug using openmp (which does not come with the default clang shipped with mac os).
Any suggestions?
I was getting the same error when trying to enable OpenMP in Xcode 9.
Finally able to fix the problem by changing some Xcode 9 settings found from this:
In build settings > build options > Enable Index-While-Building Functionality to No
When building a static library which contains duplicate definition of a function, MSVC++ 2013 gives me just a warning:
LNK4006 "... already defined in ... second definition ignored"?
I'm afraid that a warning is too easy to miss. Is it possible to make MSVC++ 2013 to report an error and fail the build if multiple definitions for the same function is found (in different .cpp files)?
Note that the reverse of the solution suggested here (i.e. Project Settings > linker > uncheck 'Force file output') is not applicable because that's for an executable, but in this question a static library is in focus thus no "linker" project option.
There doesn't seem to be a way to treat specific warnings as errors. You can however treat every linker warning as error:
Go to: Project Properties -> Linker -> General -> Treat Linker Warnings As Errors and switch it to Yes (/WX).