When you use Team Foundation Server (TFS) 2015 Update 2 in one of the following languages, the Build feature may not work:
Additionally, an error that resembles the following is logged in the Build log file:
Invalid object other than ':' or '}' has been passed.
To resolve this problem, follow these steps:
If you are not the TFS team project collection administrator, make sure that you have been added as an agent pool administrator. For more information, see Agent pools.
Download and extract the compressed (.zip) file from here.
On one of your TFS Application Tiers, open a PowerShell console, and then change the current location to the directory where you extracted the .zip file in step 2.
For example, run CD C:\TFS_2015_Update_2_Task_Updates.
To verify that your execution policy allows for the execution of installation scripts, run the following command line:
Set-ExecutionPolicy Unrestricted -Scope Process -Force
From a TFS Application Tier, run the installation script against your TFS collection, as follows:
\Install-TaskUpdate.ps1 -CollectionUrl http://myserver:8080/tfs/DefaultCollection
Note This update allows the Build feature to run in Simplified Chinese, Traditional Chinese, Japanese, and Korean. There is still a bug in which the console and logging may be missing encoding.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.