Error: “Could not load file or assembly Terrasoft.WebApp.Loader” after Local Installation
Hi everyone,
I am installing Creatio 8.1.2 Studio (Softkey, MSSQL) locally on Windows, and after completing the installation, the site fails to load with this error:
Could not load file or assembly 'Terrasoft.WebApp.Loader, Culture=neutral'
The error points to this line in web.config:
<add name="FileWebEventProvider" type="Terrasoft.WebApp.Loader.FileWebEventProvider, Terrasoft.WebApp.Loader, Culture=neutral" />
🔍 What I checked so far
I searched the installation folder and could find only:
Terrasoft.WebApp.Loader.resources.dll
But the main assembly:
Terrasoft.WebApp.Loader.dll
does not exist anywhere in the installation folder, including:
/bin//bin/en//bin/kk-KZ/- All language folders
It looks like only resource DLLs were included in the installer, but the core DLL itself is missing.
❓ My question
Has anyone faced this issue before?
- Is this a known issue with the Softkey / Studio version of Creatio?
- Should the installer contain Terrasoft.WebApp.Loader.dll by default?
- Do I need to reinstall or download a different Creatio package?
- Can this DLL be restored manually from another installation?
Any help or guidance will be really appreciated. Thank you!
Like
Hello,
Seems like you either have no Terrasoft.WebApp folder or some files in it missing. Try to request proper binary files from our support.
One more idea is that your IIS user doesn't have access to this folder. Try to distribute full control rights to 'everyone', restart the website and flush redis.
Best regards,
Alina
Alina Yakovlieva,
Hi Alina, thanks for your response!
The installation package I am using is working correctly for my colleagues, so the issue doesn’t seem to be with the installer itself.
However, on my system, after extracting the setup ZIP file, the IdentityService folder appears as a compressed (zipped) folder instead of a normal folder. Because of this, the files inside it (including required binaries) are not extracted to the Terrasoft.WebApp and related folders.
I believe this is the reason why some DLLs like Terrasoft.WebApp.Loader.dll are missing during runtime.
What I have tried:
- Extracted using 7-Zip
- Extracted using Windows “Extract All”
- Unblocked the ZIP file before extraction
- Tried extracting to a simple path (C:\Creatio)
- Ran extraction and installation as Administrator
But even after these steps, IdentityService is still showing as a ZIP after extraction, which means the folder is not being unpacked properly.
Request for guidance:
Could this be due to:
- Windows ZIP extraction limitations?
- Corrupted download?
- A packaging issue in this specific Softkey version?
And what is the recommended way to correctly unpack the IdentityService folder so the missing binaries get placed in the Terrasoft.WebApp\bin directory?
Any suggestions to fix the extraction issue would be really helpful. Thanks!