[wix-users] Issue with Heat & MSBuild

[Bevan Weiss]

What versions of MSBuild tools are your projects (in this solution) configured for?

They all build fine when individually targeted?

>From the GitHub issue it seems almost certain that one of your project files is asking for a ToolsVersion of 12 (hence why this version of MSBuild is being requested).
So your solution would be to correct your projects to reference a version of MSBuild that you do have available.


24 Dec 2021 06:36:52 Ven H <venh.123 at gmail.com>:

> Thank you Bevan. I did check this, but couldn't get any solution.
> 
> 
> On Fri, Dec 24, 2021 at 12:59 AM Bevan Weiss <bevan.weiss at gmail.com> wrote:
>> https://stackoverflow.com/questions/36920054/wix-toolset-build-fails-after-upgrading-from-net-4-0-to-4-6-1-cannot-load-msbu
>> 
>> This seems to match your error message, and has a link back to a WiX GitHub issue.
>> 
>> 
>> 
>> 24 Dec 2021 06:27:31 Ven H <venh.123 at gmail.com>:
>> 
>>> Hi Bevan,
>>> 
>>> Thanks a lot for your response. I think it was built using VS 2017 or before, but not quite sure. Other WiX projects build absolutely fine (with VS 2019 and WiX 3.11.2) without heat. I searched quite a bit but didn't find anything helpful. That's why I posted here.
>>> 
>>> 
>>> On Fri, Dec 24, 2021 at 12:53 AM Bevan Weiss <bevan.weiss at gmail.com> wrote:
>>>> That version number for Microsoft.Build doesn't seem to match with Visual Studio 2019.
>>>> 
>>>> So what version of Visual Studio was used for the project originally?
>>>> It seems you have a fixed reference to an old MSBuild somewhere.
>>>> 
>>>> Do other WiX projects work fine? (With/without Heat)
>>>> 
>>>> Have you tried to google for the problem?
>>>> 
>>>> 
>>>> Regards,
>>>> Bevan
>>>> 
>>>> 24 Dec 2021 00:42:26 Ven H via wix-users <wix-users at lists.wixtoolset.org>:
>>>> 
>>>>> Can anyone please help with this? I searched a lot, but could not find any
>>>>> solution.
>>>>>
>>>>>
>>>>> On Wed, Dec 22, 2021 at 9:19 PM Ven H <venh.123 at gmail.com> wrote:
>>>>>
>>>>>> I have a Visual Studio 2019 Professional and Votive for 2019 installed. I
>>>>>> have WixToolSet v3.11.2 also installed. When I open an existing solution
>>>>>> (provided by a customer), with WiX Project and try to build it, I am
>>>>>> getting the following error. In the PreBuild event, they are calling the
>>>>>> Heat command. Can anyone please help? I think the project was built long
>>>>>> back with WiXToolSet v3.8.
>>>>>>
>>>>>> error HEAT5316: Failed to load MSBuild wrapper object: Could not load file
>>>>>> or assembly 'Microsoft.Build, Version=12.0.0.0[http://12.0.0.0], Culture=neutral,
>>>>>> PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system
>>>>>> cannot find the file specified.
>>>>>>
>>>>>
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