Fatal error: Declaration of Temando – Magento 2.3

It is the first time that I ask a question on this community that is literally saving my life everytime.

Now I get to the point, being that I have searched for this all over the internet with no result – so I hope this post will get useful for someone else in future.

I am using Magento 2.3 with the theme Porto in local 127.0.0.1, but when in Default and also Dev mode I run the prompt command php bin/magento setup:di:compile I instantly get this output:

C:xampphtdocsmagento2>php bin/magento setup:di:compile Compilation
was started. Repositories code generation… 1/7
[====>———————–] 14% 2 secs 54.0 MiBPHP Fatal error:
Declaration of
TemandoShippingModelResourceModelCollectionPointOrderCollectionPointRepository::save(TemandoShippingApiDataCollectionPointOrderCollectionPointInterface
$collectionPoint) must be compatible with
TemandoShippingModelResourceModelRepositoryOrderCollectionPointRepositoryInterface::save(TemandoShippingApiDataDeliveryOrderCollectionPointInterface
$collectionPoint) in
C:xampphtdocsmagento2vendortemandomodule-shipping-m2ModelResourceModelCollectionPointOrderCollectionPointRepository.php
on line 24

Fatal error: Declaration of
TemandoShippingModelResourceModelCollectionPointOrderCollectionPointRepository::save(TemandoShippingApiDataCollectionPointOrderCollectionPointInterface
$collectionPoint) must be compatible with
TemandoShippingModelResourceModelRepositoryOrderCollectionPointRepositoryInterface::save(TemandoShippingApiDataDeliveryOrderCollectionPointInterface
$collectionPoint) in
C:xampphtdocsmagento2vendortemandomodule-shipping-m2ModelResourceModelCollectionPointOrderCollectionPointRepository.php
on line 24

I have tried to disable the module, but nothing happens;
I have tried to run via composer the MageFix downloaded from Github but it’s not good for Magento 2.3 (I think).

Fix

According to the suggestion of TGR_dev, this is how works the complete fix to this error.

In Vendor folder, I have deleted the folder Temando, then I saw that Magento stopped working – it’s normal;

I followed the “command line update” at this guide and reinstalled Magento: https://blog.magestore.com/upgrade-magento-2-3/#a3

Edit

Be sure to remove MageFix from the app/code folder if you uploaded it or it will give you error

Hope this will help!