Class 'GuzzleHttp\HandlerStack' not found in /src/GDS/Gateway/RESTv1.php:92

[shahariaazam]

Error: Class 'GuzzleHttp\HandlerStack' not found in ....../vendor/tomwalder/php-gds/src/GDS/Gateway/RESTv1.php:92
Stack trace:
#0 ....../vendor/tomwalder/php-gds/src/GDS/Gateway/RESTv1.php(78): GDS\Gateway\RESTv1->initHttpClient()
#1 ......./vendor/tomwalder/php-gds/src/GDS/Gateway/RESTv1.php(154): GDS\Gateway\RESTv1->httpClient()

This library is using GuzzleHttp\HandlerStack that is coming from GuzzleHttp package. But this dependency is not declared in composer.json. Does it make any sense? Is it considering Guzzle as default http client? Can anybody explain?

[tomwalder]

Sorry for the late reply. Are you still having this issue?

I suspect it's a dependancy issue at your end?