php-http/client-implentation no matching package found

[ShockRaver]

Hello,

While trying to update packages using "composer update" i came across this error and can not update/install.

Problem 1
- Installation request for ntholenaar/multisafepay-client ^0.2.3 -> satisfiable by ntholenaar/multisafepay-client[0.2.3].
- ntholenaar/multisafepay-client 0.2.3 requires php-http/client-implementation ^1.0 -> no matching package found.

Is there an alternative / or solution to this issue?

[ShockRaver]

I finally got it working again.

It doesn't work with the latest guzzle6-adapter, have to install version 1.1 (not v2.0)