Error: "install" directory is missing PS1.6.1.10 to 1.7

[sinail]

Hello, following the update of prestashop 1.6.1.10 to 1.7 by 1-click update I have the following error message:

 

Error: "install" directory is missing

 

Thx your help

Hello, following the update of prestashop 1.6.1.10 to 1.7 by 1-click update I have the following error message:

[bellini13]

pretty sure autoupgrade to 1.7 is not yet supported

[sinail]

pretty sure autoupgrade to 1.7 is not yet supported

I just tried this again if I have the error:

 

I just tried this again if I have the error:I just tried this again if I have the error:

 

 

Warning: require(C:\xampp\htdocs\fascination\app/../vendor/autoload.php): failed to open stream: No such file or directory in C:\xampp\htdocs\fascination\app\autoload.php on line 34

 

Thx

 

Fatal error: require(): Failed opening required 'C:\xampp\htdocs\fascination\app/../vendor/autoload.php' (include_path='C:\xampp\php\PEAR') in C:\xampp\htdocs\fascination\app\autoload.php on line 34

[varkeychen]

Hi

After enabling the 'Cache' from back office - Advanced Parameters > Performance -  both front and back offices gives the 'Error: "install" directory is missing'. I am not able to see both back and front office to disable the property - 'Cache' to get rid from this situation. 

My domain is https://studentsindia.org/si1733

This happened with Prestashop 1.7.2.x, 1.7.3.x installations. Kindly advice.