To solve the dinner problem at the music festival, you can refer to the following suggestions:

1. Prepare in advance: Find out in advance whether the music festival has catering services, and choose food that is easy to carry and store, such as Dried fruits, biscuits, fruits, bread, etc. for emergencies.

2. On-site purchase: If the music festival provides catering services, food can be purchased on-site. Depending on the size and venue of the festival, there may be different food and beverage options such as hot dogs, burgers, snacks, and a variety of beverages.

3. Book in advance: If the music festival is large, there may be takeout service or catering services booked in advance. You can order a quick dinner or takeout before heading to the festival to enjoy during the festival.

4. Arrange your time reasonably: If you need to wait for a long time, you can arrange your time reasonably and conduct other activities during the waiting period, such as chatting, playing games or listening to music.

In short, solving the dinner problem at the music festival requires advance preparation, on-site purchase, advance reservation and reasonable arrangement of time. At the same time, it is necessary to choose an appropriate solution based on the actual situation of the music festival.