Resolving the “Argument starts with non-ascii dash” Error During Appium Installation

Resolving the "Argument starts with non-ascii dash" Error During Appium Installation

10 November 2024 Stephan Petzl Leave a comment Tech-Help

When attempting to install Appium using the npm command line tool, some users encounter an error message indicating that an argument starts with a non-ascii dash. This can be a frustrating obstacle, especially for those eager to begin utilizing Appium for their mobile testing needs. In this article, we will explore the causes of this error and provide a straightforward solution.

Understanding the Cause of the Error

The error typically arises when the command:

npm install –g appium

is executed. The issue here is the use of a non-standard dash character. Often, this occurs when the command is copied from a source that uses a different encoding, such as a word processor or a web document, which replaces the standard ASCII dash with an en dash or em dash.

Solution

To resolve this issue, simply replace the incorrect dash with the correct ASCII dash (‘-‘). The corrected command should look like this:

npm install -g appium

By ensuring that the dash is correctly typed, the npm tool will interpret the command accurately, and the installation should proceed without further issues.

Additional Considerations

For users who frequently encounter this issue, it may be beneficial to manually type commands into the terminal rather than copying and pasting. This practice can help prevent similar errors in the future, particularly when working with command-line tools that require precise syntax.

Enhancing Your Mobile Testing with Repeato

While Appium is a popular choice for mobile test automation, some users find it to be slower and less stable. This is where our product, Repeato, can provide a substantial advantage. As a no-code test automation tool, Repeato offers a faster and more reliable alternative for iOS and Android testing. By leveraging computer vision and AI, Repeato simplifies the creation and execution of automated tests, making it an excellent choice for those seeking efficiency and stability in their testing processes.

For more information on setting up your testing environment, you can explore our getting started guide or visit our blog for the latest updates and tips.

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