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chore: Improve error message when Docker is not running #987

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2 changes: 1 addition & 1 deletion src/Testcontainers/Builders/AbstractBuilder`4.cs
Original file line number Diff line number Diff line change
Expand Up @@ -126,7 +126,7 @@ protected virtual TBuilderEntity Init()
/// <exception cref="ArgumentException">Thrown when a mandatory Docker resource configuration is not set.</exception>
protected virtual void Validate()
{
const string message = "Cannot detect the Docker endpoint. Use either the environment variables or the ~/.testcontainers.properties file to customize your configuration:\nhttps://dotnet.testcontainers.org/custom_configuration/";
const string message = "Docker is either not running or misconfigured. Please ensure that Docker is running and that the endpoint is properly configured. The environment variables or the ~/.testcontainers.properties file can be used to customize your configuration:\nhttps://dotnet.testcontainers.org/custom_configuration/";
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_ = Guard.Argument(DockerResourceConfiguration.DockerEndpointAuthConfig, nameof(IResourceConfiguration<TCreateResourceEntity>.DockerEndpointAuthConfig))
.ThrowIf(argument => argument.Value == null, argument => new ArgumentException(message, argument.Name));
}
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