Cordova App - IOS build failed on Appflow, Failed to install 'onesignal-cordova-plugin': Error: pod: Command failed with exit code 31

Question

IOS build keeps failing on Appflow, every other plugin were installed except for firebasex and onesignal, have tried almost all solutions online which include installing phonegap-plugin-push all still not working, i will appreciate if anyone can help with solution error below on appflow:

*Failed to install 'cordova-plugin-firebasex': Error: pod: Command failed with exit code 31 Error output:

Failed to install 'onesignal-cordova-plugin': Error: pod: Command failed with exit code 31 at ChildProcess.whenDone (/Users/ionic/builds/smartacedeveloper/HOR-Cordova/node_modules/cordova-common/src/superspawn.js:136:25) at ChildProcess.emit (events.js:315:20) at maybeClose (internal/child_process.js:1048:16) at Process.ChildProcess._handle.onexit (internal/child_process.js:288:5) Failed to restore plugin "onesignal-cordova-plugin". You might need to try adding it again. Error: Error: pod: Command failed with exit code 31

also see my Ionic Info, Ionic:

Ionic CLI : 6.11.8
Ionic Framework : @ionic/angular 5.3.3

@angular-devkit/build-angular : 0.1002.0

@angular-devkit/schematics : 10.0.8

@angular/cli : 10.0.8

@ionic/angular-toolkit : 2.3.3

Cordova:

Cordova CLI : not installed

Cordova Platforms : android 9.0.0, ios 6.2.0

Cordova Plugins : cordova-plugin-ionic-keyboard 2.2.0, cordova-plugin-ionic-webview 4.2.1, (and 21 other plugins)

Utility:

cordova-res (update available: 0.15.3) : 0.15.1

native-run (update available: 1.3.0) : 1.1.0

System:

Android SDK Tools : 26.1.1 (C:\Users\GOLD AND DIAMOND\AppData\Local\Android\Sdk)

NodeJS : v14.15.3 (C:\Program Files\nodejs\node.exe)

npm : 6.14.10

OS : Windows 10

Answer 1

Try running this:

brew update;
brew upgrade;
pod repo update

Many people fixes the problem just with 'pod repo update'.

If it doesn't work, make sure you do not run pod install as admin and that permissions for all the folders and files in the ionic project (not only iOS folder) are not locked. Right-click on folder, obtain information. In the popup, at the bottom, touch the locker, write your Mac's password, and after that there's a dropdown to the left, select 'Apply to included items' (to apply recursively).

If still doesn't work make sure you're using the last version of each plugin.