We developed custom page without aura. Fully custom solution with React framework.
We're using it in Salesforce 1 Android application.
When phone tries to show an image we get an error.

Uncaught Error in $A.getCallback() [Cannot read property 'setParams' of undefined] throws at https://eu6.lightning.force.com/auraFW/javascript/C9wO3EpEHI__XcCDlMV8MQ/aura_prod.js:2:15 at libraries/force/toastLibrary/toastUtil.js:6143:119 at https://eu6.lightning.force.com/auraFW/javascript/C9wO3EpEHI__XcCDlMV8MQ/aura_prod.js:623:188

The same page works fine on iPhone and also in our sandbox.
It's woth noting, that sandbox has Spring 17 and production Winter 17.

Hi, 

Appreciate any help. We can't deploy our Apex class and trigger as some of the existing Apex test are failing. I believe it is required to run test on all classes. Any way around this? The failed test consists of both managed scripts and custom scripts created on our first implementation of Salesforce by a vendor. How can I find out if there's any impact if we remove these scripts?