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Error: Unable to install the assembly into the Global Assembly Cache – BizTalk Deployment

Today during testing and redeploying the BizTalk 2006 application, I got this error.

Change requests failed for some resources. BizTalkAssemblyResourceManager failed to complete end type change request. Unable to install the assembly into the Global Assembly Cache.

Exception: A file load exception occurred while attempting to install the assembly into the Global Assembly Cache. This error may occur if the assembly is delay signed, or if assembly was renamed after creating/signing

Only solution to this problem was to close the visual studio solution and then reopen solution, this solved temporally.  Issue appears again after second or third deployment.

After doing google, I followed these steps to remove this error.

• I have to clear the temp files at machine. For this purpose I typed %temp% at run and it opened the temporary folder. Clear all directory alternatively we can get temp directory similar to following address “ X:Documents and SettingsUserNameLocal SettingsTempBT.

• Full stop the application at BizTalk console. And stop the BizTalk host instance on application is running. Then uninstall the previous/ current versions of dll from GAC and redeploy the application. If you got error message on uninstalling the assembly error “Cannot Uninstall as it is being used by another process”, then stop the host instance, close all applications and try again. If you still cant delete the dll, restart the PC.

• Check if the project is using any reference path that does not exist. ( For this, go to project properties -> Select Reference Paths -> Delete any References that doesn’t Exist)

 

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