'webdev serve' on Fedora 28 ProcessException: No such file or directory about webdev

[kevmoo]

The code in question is here:

webdev/webdev/lib/src/util.dart

Lines 11 to 22 in 1602e68

	/// The path to the root directory of the SDK.
	final String _sdkDir = (() {
	// The Dart executable is in "/path/to/sdk/bin/dart", so two levels up is
	// "/path/to/sdk".
	var aboveExecutable = p.dirname(p.dirname(Platform.resolvedExecutable));
	assert(FileSystemEntity.isFileSync(p.join(aboveExecutable, 'version')));
	return aboveExecutable;
	})();
	final String dartPath = p.join(_sdkDir, 'bin', 'dart');
	final String pubPath =
	p.join(_sdkDir, 'bin', Platform.isWindows ? 'pub.bat' : 'pub');

We effectively assume the following structure for the SDK directory...

• version
• bin/pub
• bin/dart

Do you see this out directory anywhere?
Are dart and pub in the same directory?

[Jack0fAll]

I updated my first post on this thread so you can see the link I was referring to for the guide for installing Dart.
Upon rereading that, I saw the problem.

I've been using dart-sdk/sdk/sdk, which has bin/pub, bin/dart, but not version.
I should have been using dart-sdk/sdk/out/ReleaseX64/dart-sdk, which has bin/pub, bin/dart, and version.

So, the solution was to change my path for Dart from
export PATH=/home/myUserName/development/dart/dart-sdk/sdk/sdk/bin:$PATH
to
export PATH=/home/myUserName/development/dart/dart-sdk/sdk/out/ReleaseX64/dart-sdk/bin:$PATH.

After doing this, webdev serve worked!

In conclusion, this is not a problem with webdev. I'm sorry for any inconvenience.
Potentially, we could add a more detailed error message when the above error message is triggered that automatically searches for another dart-sdk directory in the current dart-sdk directory and suggests you change your path to use the deeper (correct) directory. That could help a less experienced Linux user, but may be too specific of a problem to worry about adding an error message for.

Should I suggest they add a section on updating the PATH to Building Dart on CentOS, Red Hat, Fedora and Amazon Linux AMI?

Thank you for your time.

BTW (for any future/lurking readers), to change path variables in Fedora 28, it's best to make or edit a file in etc/profile.d
For example, I use /etc/profile.d/myPathVars.sh:

# 08/16/2018
# Dart and pub:
export PATH=/home/myUserName/development/dart/dart-sdk/sdk/out/ReleaseX64/dart-sdk/bin:$PATH

[CarreraPHP]

@Jack0fAll , Can you close this Issue?