What is the reason? Help me please...
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Installing multiple instances and project rebuilding problem.
Good day! I have faced with some strange problem using Advanced Installer 21.1. I have a project in multiple instances mode. -Generate instances at installation time- option is on. And installation works fine. I install several instances from current installation package. But then I make installation package rebuilding (Rebuild All menu) without any project options changes. After that if i try to execute the new installation package .exe file Windows shows error that another version of this product was already installed and installation cannot continue. If I uninstall instances that were installed with previous installation package the new installation package begins to work fine and I could install several instances again. But the next project rebuilding repeats the problem.
What is the reason? Help me please...
What is the reason? Help me please...
Re: Installing multiple instances and project rebuilding problem.
Hello,
Please note that this is the normal behavior.
Your product is identified by the OS by a GUID called ProductCode.
Product Identification (ProductCode and UpgradeCode)
Best regards,
Catalin
Please note that this is the normal behavior.
Your product is identified by the OS by a GUID called ProductCode.
Product Identification (ProductCode and UpgradeCode)
- Screenshot_74.png (51.38 KiB) Viewed 13317 times
Best regards,
Catalin
Re: Installing multiple instances and project rebuilding problem.
Thank you for the reply.
So I should set new GUID for each rebuilded installation package for compatibility with previous package instance. Is it so?
So I should set new GUID for each rebuilded installation package for compatibility with previous package instance. Is it so?
Re: Installing multiple instances and project rebuilding problem.
Hello,
If you change something in the project, then yes, you should do so.
Addiitonally, it is recommended to also change the version. For instance, if the base version is 1.0.0, then if you change something (e.g. add some files), change the version to 1.0.1 (or 2.0.0). When doing so, you will be asked if you want to generate a new ProductCode and you can select "Yes" there.
This way, the new package will detect the old package and upgrade it, meaning:
- uninstall of the previous version
- install of the newer version
Best regards,
Catalin
If you change something in the project, then yes, you should do so.
Addiitonally, it is recommended to also change the version. For instance, if the base version is 1.0.0, then if you change something (e.g. add some files), change the version to 1.0.1 (or 2.0.0). When doing so, you will be asked if you want to generate a new ProductCode and you can select "Yes" there.
This way, the new package will detect the old package and upgrade it, meaning:
- uninstall of the previous version
- install of the newer version
Best regards,
Catalin
Re: Installing multiple instances and project rebuilding problem.
Good day!
But I didn't change something. I just made project rebuilding.Catalin wrote: If you change something in the project, then yes, you should do so.
Re: Installing multiple instances and project rebuilding problem.
Hello,
I understand.
However, please note that this is how the Windows Installer works - it will not allow you to reinstall the same package on the same machine.
If you need to rebuild and retest the same package, simply uninstall it manually and that should be enough.
Best regards,
Catalin
I understand.
However, please note that this is how the Windows Installer works - it will not allow you to reinstall the same package on the same machine.
If you need to rebuild and retest the same package, simply uninstall it manually and that should be enough.
Best regards,
Catalin
Re: Installing multiple instances and project rebuilding problem.
Thank you for your help! 