C Run-Time Error R6034
Error Message
An application has made an attempt to load the C runtime library without using a manifest. This is an unsupported way to load Visual C++ DLLs. You need to modify your application to build with a manifest. For more information, see the "Visual C++ Libraries as Shared Side-by-Side Assemblies" topic in the product documentation.Applications must use a manifest to load the C runtime library. For more information, see Visual C++ Libraries as Shared Side-by-Side Assemblies and Manifest Generation in Visual Studio.
In release builds, the diagnostic message reads: "An application has made an attempt to load the C runtime library incorrectly. Please contact the application's support team for more information."
To correct this error
-
Rebuild your application with a manifest. Building an application with Visual Studio automatically puts the manifest into the resulting EXE or DLL file. If you are building at the command line, use the mt.exe tool to add the manifest as a resource. Use resource ID 1 if building an EXE, 2 if building a DLL. For more information, see How to: Embed a Manifest Inside a C/C++ Application.
runtime exception R6034: "...attempt to load the C runtime library incorrectly..."
I spent a week's hard work on this issue, come to the following conclusion:
(1) The problem: A.EXE depends on {B.DLL, MSVCR80D.DLL}; B.DLL depends on {MSVCR80.DLL}; A.EXE runs into exception R6034, as the title.
(2) The fix: replace B.DLL with B_DEBUG.DLL, which provides the same API as B.DLL but depends on {MSVCR80D.DLL}, and get A1.EXE. A1.EXE runs fine.
(3) reasoning and conclusions:
(3.1)Check the embeded manifest of B_DEBUG.DLL:
<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
<dependency>
<dependentAssembly>
<assemblyIdentity type="win32" name="Microsoft.VC80.DebugCRT" version="8.0.50608.0" processorArchitecture="x86" publicKeyToken="1fc8b3b9a1e18e3b"></assemblyIdentity>
</dependentAssembly>
</dependency>
</assembly>
(3.2) Check the embeded manifest of B.DLL:
<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
<dependency>
<dependentAssembly>
<assemblyIdentity type="win32" name="Microsoft.VC80.CRT" version="8.0.50608.0" processorArchitecture="x86" publicKeyToken="1fc8b3b9a1e18e3b"></assemblyIdentity>
</dependentAssembly>
</dependency>
</assembly>
(3.3) Hypothesis01: Microsoft.VC80.DebugCRT and Microsoft.VC80.CRT share the common publicKeyToken "1fc8b3b9a1e18e3b", so the "assembly" loading mechanism get into a mess.
(3.4) Hypothesis02: If compile and link B.DLL with VC6.0, then no "assembly" conception nor "assembly loading mechanism", nor the R6034 exception.
(3.5) Conclusion01: The statement "An application has made an attempt to load the C runtime library without using a manifest" miss the point and some enhancement of document is necessary.
(1) The problem: A.EXE depends on {B.DLL, MSVCR80D.DLL}; B.DLL depends on {MSVCR80.DLL}; A.EXE runs into exception R6034, as the title.
(2) The fix: replace B.DLL with B_DEBUG.DLL, which provides the same API as B.DLL but depends on {MSVCR80D.DLL}, and get A1.EXE. A1.EXE runs fine.
(3) reasoning and conclusions:
(3.1)Check the embeded manifest of B_DEBUG.DLL:
<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
<dependency>
<dependentAssembly>
<assemblyIdentity type="win32" name="Microsoft.VC80.DebugCRT" version="8.0.50608.0" processorArchitecture="x86" publicKeyToken="1fc8b3b9a1e18e3b"></assemblyIdentity>
</dependentAssembly>
</dependency>
</assembly>
(3.2) Check the embeded manifest of B.DLL:
<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
<dependency>
<dependentAssembly>
<assemblyIdentity type="win32" name="Microsoft.VC80.CRT" version="8.0.50608.0" processorArchitecture="x86" publicKeyToken="1fc8b3b9a1e18e3b"></assemblyIdentity>
</dependentAssembly>
</dependency>
</assembly>
(3.3) Hypothesis01: Microsoft.VC80.DebugCRT and Microsoft.VC80.CRT share the common publicKeyToken "1fc8b3b9a1e18e3b", so the "assembly" loading mechanism get into a mess.
(3.4) Hypothesis02: If compile and link B.DLL with VC6.0, then no "assembly" conception nor "assembly loading mechanism", nor the R6034 exception.
(3.5) Conclusion01: The statement "An application has made an attempt to load the C runtime library without using a manifest" miss the point and some enhancement of document is necessary.
- 11/10/2011
- wxq_from_china
Same executable works from cmd line, fails with R6034 when run from service
I have an application that, when started from the command line, runs just fine. However, when a daemon running as a service starts the same executable (from the same directory, with the same PATH set, and no network drive references) fails with R6034.
$0$0
$0
$0When running Dependency Walker from the command line, and from that same daemon, the difference that is seen is that GDIPLUS.DLL is loaded as a "side-by-side component" from the winsxs directory when run from the command line, but isn't found when run from the daemon. Copying the GDIPLUS.DLL into the application's directory (as a test) now loads it from the application directory when run from the daemon, but still from the winsxs directory when run from the command line, and still fails with R6034 from the daemon.$0
$0$0
$0
$0How can I find the manifest that is "working" from the command line, and how do I figure out why it's not loaded when run from the daemon?$0
- 12/1/2010
- kenbrody
Can't run form application with derived control
Hi,
$0I created windows forms control library - MyControl which is derived from Button.$0
$0Then, in my form application, I added this MyControl (dll) in toolbox using (choose items... etc.).$0
$0When I place MyControl in my form and try to run it, I get run-time error R6034.$0
$0The manifest is generated, what else can cause the problem??$0
$0I cannot go over it.$0
$0$0
$0
$0I am using Visual Studio2008 c++.$0
$0$0
$0
$0Thanks, best regards,$0
$0Stanislav $0
- 11/30/2010
- bks5253
Regarding C Run-Time Error R6034
Microsoft's recommendation is very confusing. That is, it recommends to include a manifest file and to re-compile the project.$0
$0
I recently had a problem with 'R6034' error message even with a manifest file already included!$0
$0
In my case, Visual Studio 2005 compiles and builds a DEBUG-configuration of some DLL. But, as soon as I try to start an$0
application that uses that DLL the loader can't load the DLL and displays an error message with error code 'R6034'.$0
$0
It happened because two Run-Time DLLs were referenced in my DLL by some reason! As soon as I looked$0
inside of my DLL I found two strings: 'msvcr80d.dll' and 'msvcr80.dll', and the 2nd one is the reason of that run-time problem.$0
$0
In order to resolve the problem I added 'msvcrt.lib' to the list of ignored libraries for DEBUG-configuration:$0
$0
[Configuration Properties] -> [Linker] -> [Input] -> 'Ignore Specific Library' - msvcrt.lib
- 7/9/2009
- S. Kostrov
- 9/4/2010
- don the great
dll conflict
Two Run-Time DLLs were referenced in my DLL. When I delete one dll, the error is corrected. I think my DLL don't know to use what function that is declared in both of them.
$0$0
- 12/22/2009
- thanchu
- 9/4/2010
- don the great
No external manifest
Additional to embedding a manifest file make sure that there is no external manifest file for this application. Otherwise the CRT.manifest will be searched in the application's directory and will most probably fail as this is not there.
In my case of a R6034 I just had to remove the external manifest and it started up OK.
In my case of a R6034 I just had to remove the external manifest and it started up OK.
- 9/28/2009
- swave
Manifest being included...
I am creating a DLL with VS2005 and the Manifest is being embedded, yet I am still getting a R6034. What next?
- 7/2/2009
- HYPACK
Migrated to VS2008. Everything compiles, but does not run
https://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=362837
- 12/3/2008
- Kurien Mathew
