How to Fix: Docker gets error "failed to compute cache key: not found" - runs fine in Visual Studio
Docker build error: failed to compute cache key not found. Solution involves using full path to .csproj file and ensuring directory exists.
📋 Table of Contents
The error message 'failed to compute cache key: not found' when building a Docker image from Windows indicates that the cache key is not being generated correctly. This issue can occur due to various reasons, including incorrect directory paths or missing files.
🔍 Why This Happens
- When using the COPY instruction in a Dockerfile, it looks for the file in the current directory. If the file is not present in that directory, Docker will throw an error.
🚀 How to Resolve This Issue
Method 1: Using Absolute Paths
- Step 1: Replace the relative path with an absolute path in your Dockerfile. For example, if your file is located at C:\path\to\client.csproj, use the following instruction:
Method 2: Using Relative Paths with Correct Directory
- Step 1: Ensure that the directory containing your file is present in the current working directory when running the docker build command. You can do this by navigating to the correct directory before running the command.
💡 Conclusion
To resolve the 'failed to compute cache key: not found' error when building a Docker image from Windows, use absolute paths or ensure that the correct directory is present in the current working directory. By following these methods, you should be able to build your Docker image successfully.
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