Had the situation where you are running composer however, the scripts stops with a prompt?  Such as:

In Xcode attempting to build or run an app, I receiving a framework error.

Working through an app project I inherited using Ionic, Angular and ngx-leaflet to name a few elements... I had a problem where the map shows only all map tiles when navigating via my app in the Xcode simulator.  The simulator screen would show just a small tile and the rest of the area where the map should be visible stays in gray color.

This article references some of the common commands via CLI (command-line interface) in running a Cordova app.

Platforms

Platforms are the environment(s) that you want to run your app on.  We will add the 'ios' and 'android' platform and ensure they get saved to config.xml and package.json files.  

To add a platform use the following command:

It appears that the plugin or file path is not working how it used to be on previous iOS versions. Previous version had the splash screen showing.  After upgrading to plugins, a black screen is shown.

The easiest way to simulate the problem is using iOS simulator.  A black screen will show up as the splash screen.

How can you find out if the Cordova plugins have been loaded?

Begin by running the command

ionic info

You will see a response similar to

Updating the Cordova plugins... there are two locations to manage the plugins

• config.xml
• package.json

I was finding some Cordova functionality was not coming through... through further investigation the two files above had conflicting data.

Review the data

package.json

Oh the treasure of a client coming to you with a site they have removed the previous dev on... treasure hunt.  Not.

Anyway, gaining access to an old site, working through the errors I came across this deprecated code

Deprecated function: array_key_exists(): Using array_key_exists() on objects is deprecated. Use isset() or property_exists() instead in common_check_language() (line 306 of /path/to/file).

The issue

Text through the app is being rendered as

<p>Depletion estimates, Age and size composition, Catch, Effort, Catch rates, Fishing mortality</p>

Therefore, in this instance the HTML p tags are being displayed along with the text.

The code

Currently the code outputting this is written as:

If you have upgraded Ionic to 5 or 6 you will have experienced that the padding attribute is not working anymore.

<ion-content padding *ngIf="loaded" color="medium">

Use of attributes was deprecated in Ionic v4.  If you would have noticed in developers console, Ionic 4 was presenting warnings of using these attributes.  So post Ionic 4, these attributes were transitioned to CSS classes.