Error messages within the Cocoa Error Domain include error codes and descriptions that provide information about the origin of the error and the type of error. By understanding the causes and solutions to common Cocoa Error Domain errors, developers can create more reliable and robust applications.
Check the path
When you type a command in Linux, your shell checks your environment variable called $PATH. This colon-delimited list of directories stores the executable files you need to execute your commands. If the directory you want to execute isn’t in your path, you’ll get an error that says the file or command isn’t found. You can edit your $PATH environment variable to change where your shell looks for files, but you should do so only if you have advanced skill and are comfortable doing so.
The Test-Path cmdlet can determine whether all elements of a path exist, as well as whether the syntax is valid. It returns $True if the path contains all elements, and $False if any elements are missing. It can also tell if the path leads to a container, a terminal, or a leaf element. Up to PowerShell version 6.1.2, when the IsValid and PathType switches are specified together, this cmdlet ignores the PathType switch and only validates the syntactic path without validating its path type. This may break in a future version, so you should not use these two together until the issue has been resolved. Specifying colons before the expansion of $PATH and double-quoting the path to search for solves this issue, but it does require you to be careful about metacharacters in your path.
Check the file name
If you’re attempting to launch a command line program and get this error, it’s important to check the file name. This is because it could mean that you’re trying to run code on a file that’s not a native iOS or macOS file format. The best way to tell is to check if the file name has any special characters in it. If so, the file could be corrupted or has been deleted. If you’re unsure which file is the culprit, try renaming it and running the command again to see if the problem persists. Once the culprit is identified, you can take steps to fix the issue.
Check the version
When determining whether to use the errordomain=nscocoaerrordomain&errormessage=could not find the specified sh method, it’s important to know which version of Mac OS X your program is running on. This is because newer versions of Mac OS X may support different APIs than older versions. For example, newer versions of the Cocoa APIs support key-value binding, which allows for more declarative relationships between view and controller objects, whereas older versions may only support static (early) or late static (dynamic) binding.
Apple has provided a way to check the version of AppKit that the application is using by defining a double value in NSApplication.h called NSAppKitVersionNumber. This information is useful for determining which Cocoa frameworks are available on the current Mac OS X release, and it’s portable to all types of Unix. However, because this is a system-level check, it can be inaccurate in some cases. If you need to make sure your application can run on a particular version of Mac OS X, it’s recommended to check for this information using one of the methods in Methods 1 through 4. That way, you can be confident that your application will be able to run on any major release of the OS.
