Code inspection: Writing to a static field is not supported

Burst does not support writing to static state. This usually happens inside a [BurstCompile] job or another Burst-compiled method.

Example

In this example, the counter field is declared as static. Writing to it inside the Execute method of a [BurstCompile] job is not supported.

                using Unity.Burst;
                using Unity.Jobs;

                [BurstCompile]
                public struct ExampleJob : IJob
                {
                    private static int counter;

                    public void Execute()
                    {
                        // Reported: Writing to a static field is not supported
                        counter = 1;
                    }
                }
            

                using Unity.Burst;
                using Unity.Jobs;

                [BurstCompile]
                public struct ExampleJob : IJob
                {
                    public int counter;

                    public void Execute()
                    {
                        // Correct: Use instance fields or native containers instead
                        counter = 1;
                    }
                }
            

Quick-fix

This inspection does not provide a dedicated quick-fix. Fix it manually by removing the static write and moving the state into Burst-compatible data, such as instance fields, job data, or a supported native container.

26 March 2026