Compile All Triggers
I was running some routine maintenance in a customer's environment the other day when a new/exciting error message appeared in the developer console.
Dependent classes and triggers are invalid and need recompilation
Usually for this error I just head over to Apex Classes and press
Compile all classes
That should solve one part of the problem, now what about compiling the Triggers?
A hidden button
The error message specified that both Classes and Triggers needed recompiling.
There wasn't a button to Compile all triggers in the user interface.
Solving this just need a quick look around the success community and then over to Salesforce support who said that they could activate the button for me.
Here's the help article I found that prompted me to contact support: https://help.salesforce.com/articleView?id=000229072&type=1
24 hours later the Compile all triggers option appeared magically in Develop > Triggers.
Once I had complied all classes and triggers the error message went away - time for the next challenge!
Image from Pexels.com, artist Negative Space