config.xml

<cordova>
  <!-- ... -->
  <plugins>
    <!-- ... -->
    <plugin name="OpenUrl" value="OpenUrl" />
  </plugins>
  <!-- ... -->
</cordova>

index.html

<script type="text/javascript" src="cordova-2.3.0.js"></script>
<script type="text/javascript" src="js/jquery.js"></script>
<script type="text/javascript">
    document.addEventListener("deviceready", function() {

        $(document).on('click', 'a._blank', function(event) {
            event.preventDefault();
            var url = $(this).attr('href');

            var success = function(url) {
                console.log('success! ' + url);
            }

            var error = function() {
                console.log('error');
            }
            
            // execute the plugin
            // exec(successCallback, errorCallback, pluginName, pluginMethod, params)
            cordova.exec(success, error, "OpenUrl", "openUrl", [url]);

            // the other way that opens in the InAppBrowser (which sucks)
            // window.open(url, '_blank');
        });

    });
</script>

OpenUrl.h

/********* OpenUrl.h Cordova Plugin Header *******/

#import <Cordova/CDV.h>

@interface OpenUrl : CDVPlugin

- (void)openUrl:(CDVInvokedUrlCommand*)command;

@end

OpenUrl.m

/********* OpenUrl.m Cordova Plugin Implementation *******/

#import "OpenUrl.h"
#import <Cordova/CDV.h>

@implementation OpenUrl

- (void)openUrl:(CDVInvokedUrlCommand*)command
{
    CDVPluginResult* pluginResult = nil;
    NSString *url = [command.arguments objectAtIndex:0];

    if (url != nil && [url length] > 0) {
        [[UIApplication sharedApplication] openURL:[NSURL URLWithString:url]];            
        pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsString:url];
    } else {
        pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_ERROR];
    }

    [self.commandDelegate sendPluginResult:pluginResult callbackId:command.callbackId];
}

@end

I am getting this error, can you help me out?

Failed to restore plugin "OpenUrl" from config.xml. You might need to try adding it again. Error: Error: npm: Command failed with exit code 1 Error output: