Can't create Assembly Microsoft.AnalysisServices.dll on sql 2019 db with latest CU

Yihong Shan 1 Reputation point

we can’t create assembly Microsoft.AnalysisServices.dll on sql 2019 db. Failed with dead loop:
Here is the dependency chains
Microsoft.AnalysisServices.dll -> Microsoft.AnalysisServices.Tabular.dll - > Microsoft.AnalysisServices.Core.dll -> system.web -> system.enterpriseservices -> system.runtime.remoting -> system.web

Please note: we can successfully create the assembly on both sql 2016 and 2017 without refers to system.web


SQL Server
SQL Server
A family of Microsoft relational database management and analysis systems for e-commerce, line-of-business, and data warehousing solutions.
13,067 questions
SQL Server Analysis Services
SQL Server Analysis Services
A Microsoft online analytical data engine used in decision support and business analytics, providing the analytical data for business reports and client applications such as Power BI, Excel, Reporting Services reports, and other data visualization tools.
1,256 questions
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  1. ZoeHui-MSFT 34,576 Reputation points

    Hi @Yihong Shan ,

    What's your version of the .net framework, please try to install the newest version for a try.

    In addition, please check the release of SSMS.

    Try to install SSMS18.11.1 to see if it could resolve the issue.




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  2. Erland Sommarskog 103.5K Reputation points MVP

    I guess the version of Microsoft.AnalysisServices.dll you are loading is different depending on which version of SQL Server you got it from. That is, maybe in older versions there was no reference to System.Web, but now there is.

    You could try adding System.Web, but it may be one of these system assemblies that are blocked from being added to SQL Server.

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