Can't install mpdf using composer in php 7.2.9 - php

Question

I'm trying to install mpdf using composer command :
composer require mpdf/mpdf
but I am getting this error:
Problem 1
- Conclusion: don't install mpdf/mpdf v7.1.5
- Conclusion: don't install mpdf/mpdf v7.1.4
- Conclusion: don't install mpdf/mpdf v7.1.3
- Conclusion: don't install mpdf/mpdf v7.1.2
- Conclusion: don't install mpdf/mpdf v7.1.1
- Conclusion: remove setasign/fpdi v2.1.0
- Installation request for mpdf/mpdf ^7.1 -> satisfiable by mpdf/mpdf[v7.1.0, v7.1.1, v7.1.2, v7.1.3, v7.1.4, v7.1.5].
- Conclusion: don't install setasign/fpdi v2.1.0
- mpdf/mpdf v7.1.0 requires setasign/fpdi 1.6.* -> satisfiable by setasign/fpdi[1.6.0, 1.6.1, 1.6.2].
- Can only install one of: setasign/fpdi[1.6.0, v2.1.0].
- Can only install one of: setasign/fpdi[1.6.1, v2.1.0].
- Can only install one of: setasign/fpdi[1.6.2, v2.1.0].
- Installation request for setasign/fpdi (locked at v2.1.0) -> satisfiable by setasign/fpdi[v2.1.0].
Installation failed, reverting ./composer.json to its original content.
this is my composer.json
{
"lynx39/lara-pdf-merger": "1.0.*",
"name": "laravel/laravel",
"description": "The Laravel Framework.",
"keywords": [
"framework",
"laravel"
],
"license": "MIT",
"type": "project",
"require": {
"php": "^7.1.3",
"codedge/laravel-fpdf": "^1.2",
"crabbly/fpdf-laravel": "^1.0",
"cyber-duck/laravel-excel": "^1.2",
"dompdf/dompdf": "^0.8.2",
"fideloper/proxy": "^4.0",
"jurosh/pdf-merge": "^2.0",
"laravel/framework": "5.6.*",
"laravel/passport": "^7.0",
"laravel/tinker": "^1.0",
"maatwebsite/excel": "^3.0",
"mpdf/mpdf": "^7.1",
"paragonie/random_compat": "2.*",
"phpoffice/phpspreadsheet": "^1.4",
"phpoffice/phpword": "^0.15.0",
"rguedes/pdfmerger": "^1.0",
"setasign/fpdi-fpdf": "^2.0",
"tecnickcom/tc-lib-pdf": "dev-master"
},
"require-dev": {
"filp/whoops": "^2.0",
"fzaninotto/faker": "^1.4",
"mockery/mockery": "^1.0",
"nunomaduro/collision": "^2.0",
"phpunit/phpunit": "^7.0"
},
"autoload": {
"classmap": [
"database/seeds",
"database/factories"
],
"psr-4": {
"App\\": "app/" } }, "autoload-dev": { "psr-4": { "Tests\\": "tests/" } }, "extra": { "laravel": { "dont-discover": [ ] } }, "scripts": { "post-root-package-install": [ "#php-r\"file_exists('.env') || copy('.env.example', '.env');\""
],
"post-create-project-cmd": [
"#php artisan key:generate"
],
"post-autoload-dump": [
"Illuminate\\Foundation\\ComposerScripts::postAutoloadDump",
"#php artisan package:discover"
]
},
"config": {
"preferred-install": "dist",
"sort-packages": true,
"optimize-autoloader": true
},
"minimum-stability": "dev",
"prefer-stable": true
}
Any solution??

Answer 1

mPDF 7.x is not compatible with setasign/fpdi in version 2.x - use version 1.6.
For setasign/fpdi 2.x upgrade to mPDF 8.x.