"bad server response" after upgrading to 5.6.0

[neil]

I have attempted to upgrade my EspoCRM instance from 5.5.6 to 5.6.0.

The upgrade appears to have finished correctly but, when I load the root page, I see only a "Bad server response" error.

I get the following in the log file, whenever I reload the page:

[2019-04-04 17:05:20] Espo.ERROR: Uncaught Exception ParseError: "syntax error, unexpected '?'" at /var/www/html/application/Espo/ORM/Repositories/RDB.php line 101 {"exception":"[object] (ParseError(code: 0): syntax error, unexpected '?' at /var/www/html/application/Espo/ORM/Repositories/RDB.php:101)"} []

I have:

checked permissions to ensure 644 on:
/index.php
/api/v1/index.php

run

php rebuild.php

run

php clear_cache.php

I have php version 7.3:

PHP 7.3.3-1+0~20190307202245.32+stretch~1.gbp32ebb2 (cli) (built: Mar  7 2019 20:22:46) ( NTS )

Any help in fixing this would be most welcome.

[neil]

I found a workaround, which was removing php7.3 and installing php7.1 and the related components. After restarting apache2, it worked.

[yuri]

According the error it seems that it was php 7.0 or lower. We tested EspoCRM 5.6 on php 7.3.

[neil]

According the error it seems that it was php 7.0 or lower. We tested EspoCRM 5.6 on php 7.3.

In which case, perhaps I messed up the php installation!

Thank you for your feedback.