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Posted 7 Mar 2012

Referenced assembly does not have a strong name

, 7 Mar 2012
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How to give a strong name to your assembly


Sometimes you got an error like following when you reference 3rd party dlls.

Assembly generation failed -- Referenced assembly 'Test' does not have a strong name
Cause is An assembly is not signed with a strong name, the strong name could not be verified, or the strong name would not be valid without the current registry settings of the compute.

The strong name protects clients from unknowingly loading an assembly that has been tampered with. Assemblies without strong names should not be deployed outside of very limited scenarios.

An assembly without a strong name  cannot be loaded into the global assembly cache.

To Fix this, have to follow below steps.

Steps to create strong named assembly

Step 1 : Run visual studio command prompt and go to directory where your DLL located.

  For Example my DLL located in D:/hiren/Test.dll

Step 2 : Now create il file using below command.

  D:/hiren> ildasm /all / Test.dll
  (this command generate code library)

Step 3 : Generate new Key for sign your project.

  D:/hiren> sn -k mykey.snk

Step 4 : Now sign your library using ilasm command.

  D:/hiren> ilasm /dll /key=mykey.snk

so after this step your assembly contains strong name and signed.

Jjust add reference this new assembly in your project and compile project its running now.


This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


About the Author

Hiren Khirsaria
Software Developer (Senior)
India India
has Total 7+ years of Experience in Microsoft.Net Environment.

Major Development Skills are : WPF, Silverlight, Windows Mobile, WCF RIA Service, C#, Sql Server & ASP.Net

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Comments and Discussions

PraiseThank you! Pin
mnguyen8819-Apr-16 6:57
professionalmnguyen8819-Apr-16 6:57 
GeneralRe: Thank you! Pin
Hiren Khirsaria19-Apr-16 18:38
memberHiren Khirsaria19-Apr-16 18:38 
QuestionTHANKS Pin
Vasily Tserekh27-Oct-15 7:19
memberVasily Tserekh27-Oct-15 7:19 
QuestionAssembly Generation Failed Pin
MSingh2431-Jul-15 21:20
memberMSingh2431-Jul-15 21:20 
QuestionHow to create a strong-named assembly? Pin
andyadams215-Feb-15 16:28
memberandyadams215-Feb-15 16:28 
SuggestionAutomated GUI Tool was created using this technique Pin
Nikita Mazhara3-Nov-14 23:28
memberNikita Mazhara3-Nov-14 23:28 
GeneralThanks man Pin
Member 768851113-Jul-14 20:24
memberMember 768851113-Jul-14 20:24 
QuestionHi Pin
hasan jamal siddiqui15-Jun-14 2:13
memberhasan jamal siddiqui15-Jun-14 2:13 
QuestionVersion of ildasm needs to match version of assembly when adding strong name Pin
Member 25245274-Jun-14 14:53
memberMember 25245274-Jun-14 14:53 
Question3rd party .dll does not have snk Pin
Admin .25-May-14 19:17
memberAdmin .25-May-14 19:17 
QuestionWhat if I Recompile? Pin
Joe Sweeney10-Jan-14 8:15
memberJoe Sweeney10-Jan-14 8:15 
AnswerRe: What if I Recompile? Pin
Hiren Khirsaria13-Jan-14 4:45
memberHiren Khirsaria13-Jan-14 4:45 
AnswerThanks I got my answer. Pin
krunal298416-May-13 2:34
memberkrunal298416-May-13 2:34 
QuestionError in the last sentence Pin
d.chang30-Apr-13 5:20
memberd.chang30-Apr-13 5:20 
AnswerRe: Error in the last sentence Pin
Hiren Khirsaria30-Apr-13 19:22
memberHiren Khirsaria30-Apr-13 19:22 
QuestionAnother way Pin
gbsistemas19-Aug-12 7:44
membergbsistemas19-Aug-12 7:44 
Hi, first of all thank for your time on writing this. Another way you can do this is by going to property panel of the project, then to signing tab and add a signature to your project.

Gabriel Brancolini

AnswerRe: Another way Pin
Hiren Khirsaria19-Aug-12 22:07
memberHiren Khirsaria19-Aug-12 22:07 
QuestionThoughts Pin
PIEBALDconsult7-Mar-12 7:57
memberPIEBALDconsult7-Mar-12 7:57 
AnswerRe: Thoughts Pin
Hiren Khirsaria9-Mar-12 0:36
memberHiren Khirsaria9-Mar-12 0:36 
GeneralRe: Thoughts Pin
PIEBALDconsult9-Mar-12 2:18
memberPIEBALDconsult9-Mar-12 2:18 

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