Software⏱️ 2 min read📅 2026-05-31

How to Fix: Error NU1105 Unable to find project information - The project file may be invalid or missing targets required for restore

Error NU1105 occurs when project file is invalid or missing targets required for restore.

Quick Answer: Try re-building the solution in Visual Studio 2017 15.5, and ensure that all NuGet packages are up-to-date.

All of a sudden, you are getting the following errors for 3 projects in a solution: Error NU1105 Unable to find project information - The project file may be invalid or missing targets required for restore. This error occurs when Visual Studio is unable to read the project file correctly.

⚠️ Common Causes

  • The project file may be corrupted or invalid.
  • Missing targets required for restore in the project file.

🛠️ Step-by-Step Verified Fixes

Method 1: Rebuilding the Solution

  1. Step 1: Open Visual Studio and navigate to the solution.
  2. Step 2: Right-click on the solution in the Solution Explorer and select 'Rebuild'.

Method 2: Restoring NuGet Packages

  1. Step 1: Open the Package Manager Console in Visual Studio.
  2. Step 2: Run the command 'Update-Package -IncludeDependencies' to update all NuGet packages.

🎯 Final Words

In conclusion, if you are experiencing this error, try rebuilding the solution or restoring NuGet packages. If the issue persists, check for any corrupted project files and consider seeking further assistance from a Visual Studio expert.

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