Error caused by guzzle psr-7 update

[rajeshjayan60]

Environment details

• OS: Ubuntu
• PHP version: 5.6
• Package name and version: Google api client 2.2.3

Error

Header value must be a string or an array of strings.

Code

$token = $client->fetchAccessTokenWithAuthCode($code);

The latest update to Guzzle psr7 guzzle/psr7#250, causes an error with google api client when trying to fetch an access token.

To fix it I had to downgrade the Guzzle psr7 version to 1.5.2 in composer.json

"guzzlehttp/psr7": "1.5.2"

[agwidarsito]

Thanks rajeshjayan60, I too am getting errors but I'm yet to identify which of the packages is using Guzzle in a way that's causing it.

[agwidarsito]

Update: This breaks the aws/aws-sdk-php package version 3.99.2 S3 client

[jdpedrie]

v1.5.2 is the latest release of guzzlehttp/psr7, so I'm not sure what you are downgrading from. Are you using dev-master or another unreleased version of the dependency? We don't recommend relying on unreleased package versions when it can be avoided.

It appears that they've merged a fix for this already: guzzle/psr7#272

[rajeshjayan60]

Thanks for the reply. It seems my guzzlehttp/psr7 dependency was pointing to dev-master. Changing the minimum-stability to stable in composer.json seems to do the trick.