I am having this same issue, already have .NET 4.5 installed. I click allow and then it fails. The BigQuery options seem to have changed since this post:
Has anyone found a solution?
If you still have this issue after installing .NET 4.5 it may be your proxy.
- Install a clean version of the connector.
- Open the folder: C:\Program Files (x86)\Common Files\QlikTech\Custom Data\QvBigQueryConnector
- Add the following code in the <configuration> tag in the QvBigQueryConnector.exe.config file:
<defaultProxy useDefaultCredentials="true" >