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Frequently Asked Questions

Install Visual Studio Tools for AI

Q: Does Visual Studio Tools for AI work with Visual Studio for Mac?

Visual Studio Tools for AI is an extension for Visual Studio 2017 / 2015. It does not work with Visual Studio for Mac.

Q: Does Visual Studio Tools for AI work with Visual Studio 2013?

Visual Studio Tools for AI supports only Visual Studio 2017 and 2015.

Q: I download the VSIX file from marketplace.visualstudio.com, but why cannot I install it?

Visual Studio Tools for AI is hosted on Visual Studio Marketplace in two VS 2017, and VS 2015 packages. Please download the correct package for your Visual Studio.

An easier way to install is from within Visual Studio:

  • Choose Tools > Extensions and Updates on the menu bar, or type Extensions in the Quick Launch window.
  • Search in upper right-hand corner for Visual Studio Tools for AI.
  • Select Microsoft Visual Studio Tools for AI extension.
  • Click Download button.

Prepare development environment

Q: Python may not be installed on Windows Server OS.

After having downloaded the Python installer to a local directory, right-click it and select Run as administrator. We recommend that you install Python to %LocalAppData%.

Install Python in administrator mode

Develop AI projects

Q: Python projects or examples cannot run.

If multiple Python environments exist, Visual Studio may choose a wrong environment as default, or the project is manually set to an incorrect one. Please refer to Setting up the default Python environment and change the global or per-project Python environment.

Q: CNTK BrainScript projects or examples cannot run.

Please go to option page AI Tools > Options > AI Tools > CNTK, and check whether CNTK directory is set correctly. That is, cntk.exe should be found under "${CNTK RuntimeSDK Directory}\cntk".

Please refer to here on how to install CNTK BrainScript package.

Q: IntelliSense does not work for CNTK, TensorFlow, and etc. Python code.

After having installed these frameworks, it needs some time for Visual Studio to refresh the Python completion DB. Please first choose Tools > Python > Python Environments (Visual Studio 2017), or Tools > Python Tools > Python Environments (Visual Studio 2015) on the menu bar. Then, click the refreshing button.

Refresh Python completion DB

Q: IntelliSense does not work for CNTK BrainScript code.

At present, Visual Studio Tools for AI does not support IntelliSense for CNTK BrainScript language.

Microsoft Cognitive Services

Q: The Computer Vision application created from template always returns "Unauthorized" error.

This is a known issue in the Computer Vision application template. Please open the ComputerVisionApiExtensions.cs, and add the following line of code in ComputerVisionApiExtensions class's constructor:

this.AzureRegion = GetRegion(region);

Q: I cannot retrieve subscription keys or create applications due to Unauthorized status code.

Please right-click AI Tools > Azure Cognitive Services node on the Server Explorer panel, and select Refresh.

Q: Resource group fails to retrieve cognitive services due to one or more errors occurred.

Please right-click AI Tools > Azure Cognitive Services node on the Server Explorer panel, and select Refresh.

Q: Text Analytics application reports region / location error.

The TextAnalytics SDK only allows regions from westus, westeurope, southeastasia, eastus2, westcentralus. Please relocate (move or create new) your service in these provider locations.

Q: Text Analytics application fails to display Chinese characters in the Console.

You need to change PC language to Chinese from Control Panel > Clock, Language, and Region > Language.

Q: Custom Vision Python application cannot run due to No module named 'azure.cognitiveservices'.

Please install the Custom Vision Python SDK by running the following command in a terminal:

python -m pip install azure-cognitiveservices-vision-customvision

Q: Custom Vision Python application returns Bad Request status code.

It is probably caused by permission issues of your Custom Vision account. Please try the following steps:

  • Make sure that you don't exceed the quota to create new Custom Vision projects (not the Visual Studio projects). The maximum allowed in a service / resource group differs between pricing tiers.

  • Try another subscription key, or regenerate a new one.