"Object reference not set to an instance of an object" issue in Trados Studio 2014.

Question

When I try to open the second project, I have this error message and cannot open the project. The solutions of KB #4984 as well as creating a new XML filetype don't help my case. Please advice me to fix this problem.

Best,
Akiyo

Jesse Good · Accepted Answer

Hi Akiyo, 
 
Please open the "Project Settings" (プロジェクトの設定) and remove all the Termbases. Then try opening up the file. You should be able to open it up once all the Termbases are removed. 
 
Question: 
Are you using any custom plugins that modify the Termbase settings under Project settings?

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"Object reference not set to an instance of an object" issue in Trados Studio 2014.