Thursday, April 5, 2018

Fix error Failed to call GetTypes on assembly Microsoft.Office.TranslationServices after installing Sharepoint 2013 March 2013 CU

After installing Sharepoint 2013 March 2013 CU (and higher) you may get the following error when try to do something in the site:

Failed to call GetTypes on assembly Microsoft.Office.TranslationServices, Version=, Culture=neutral, PublicKeyToken=71e9bce111e9429c. Method not found

In order to fix it try the following steps:

1. On your Sharepoint server go to the GAC and find folder of Microsoft.Office.TranslationServices.dll assembly (e.g. C:\Windows\Microsoft.NET\assembly\GAC_MSIL\Microsoft.Office.TranslationServices\v4.0_15.0.0.0__71e9bce111e9429c)

2. Open folder in Explorer > right click on Microsoft.Office.TranslationServices.dll > Properties > Details and check actual assembly version:


in this example full version is 15.0.4420.1017.

3. Go to virtual folder of your Sharepoint site (C:\inetpub\wwwroot\wss\VirtualDirectories\{Site})

4. Edit web.config > find <runtime>/<assemblyBinding> section and add the following section to the end:

<dependentAssembly xmlns="urn:schemas-microsoft-com:asm.v1">
  <assemblyIdentity name="Microsoft.Office.TranslationServices" publicKeyToken="71e9bce111e9429c" culture="neutral" />
  <bindingRedirect oldVersion="" newVersion="15.0.4420.1017" />
<dependentAssembly xmlns="urn:schemas-microsoft-com:asm.v1">
  <assemblyIdentity name="Microsoft.Office.TranslationServices.ServerStub" publicKeyToken="71e9bce111e9429c" culture="neutral" />
  <bindingRedirect oldVersion="" newVersion="15.0.4420.1017" />

Note that it is important to specify both assemblies - if you will only specify Microsoft.Office.TranslationServices you will still get same error when SharePoint will try to call /_vti_bin/client.svc (which in turn may cause other unclear problems like error "The server was unable to save the form at this time. Please try again" when you try to create or edit list item). After that error should disappear. If similar error will occur for different assembly try to add assembly bindnig redirection for it as well.

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