The new 0.5.4 version of the Blynk library doesn't have any header (.h) files!

Anyone know what’s the problem? My code functioned perfectly, I just updated the library, and nothing works now.

Appreciate your help,
Best.

This “new” version has been around for 3 months and is well tested… Sounds like you didn’t download or install the library properly.

Always best to do so manually, not relying on the IDE or old documentation… use the official method…