How can I upgrade SSIS project dtproj files from 2008 to 2017

After installing SSDT for SQL Server 2017 in VS 2017, I still cannot load an earlier version's dtproj file.

This project is incompatibility with the current edition of Visual Studio

The old .dtproj looks like this:

<Project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <ProductVersion>10.50.1600.1</ProductVersion>
  <SchemaVersion>9.0.1.0</SchemaVersion>

The newer dtproj looks like this:

<Project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <DeploymentModel>Project</DeploymentModel>
  <ProductVersion>14.0.800.60</ProductVersion>
  <SchemaVersion>9.0.1.0</SchemaVersion>

In general they appear similar. I haven't really seen any documentation at https://learn.microsoft.com/en-us/sql/ssdt/changelog-for-sql-server-data-tools-ssdt that addresses how to upgrade the project files.

Is there any tooling for performing upgrades?

SSDT 15.8.1 has an import .ispac wizard that will create the components for you. Setup is a bit tricky though.

Steps to Setup

1. Install "Microsoft Analysis Services Projects" VS extension in VS2017.
2. Download SSDT 15.8.1 here: https://go.microsoft.com/fwlink/?linkid=2024393
3. During install, select a "New instance" (DO NOT use existing VS2017 instance because it will fail with a vague "Recursion too deep; stack overflow" error). New instance will be named SSDT by default.
4. Open SSDT VS instance and go File > New Project > Business Intelligence > Integration Services.
5. Select Integration Services Import Project Wizard and browse to ispac that you want to use.

All components should be created for you.