claude-code - 💡(How to fix) Fix [Bug] Prompt execution interrupted immediately upon submission [1 comments, 2 participants]

[{"error":"TypeError: Cannot read properties of null (reading 'effortLevel')\n at hH0 (file:///Users/richard/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:1845:3909)\n at ew (file:///Users/richard/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:2207:4166)\n at async B4A (file:///Users/richard/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:2712:12663)\n at async file:///Users/richard/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:2880:7278","timestamp":"2026-04-24T16:59:30.271Z"},{"error":"TypeError: Cannot read properties of null (reading 'effortLevel')\n at hH0 (file:///Users/richard/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:1845:3909)\n at ew (file:///Users/richard/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:2207:4166)\n at async B4A (file:///Users/richard/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:2712:12663)\n at async file:///Users/richard/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:2880:7278","timestamp":"2026-04-24T16:59:30.271Z"},{"error":"TypeError: Cannot read properties of null (reading 'effortLevel')\n at hH0 (file:///Users/richard/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:1845:3909)\n at ew (file:///Users/richard/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:2207:4166)\n at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n at async file:///Users/richard/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:2709:1990\n at async file:///Users/richard/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:2709:2831\n at async J07 (file:///Users/richard/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:2640:4939)\n at async rK1 (file:///Users/richard/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:2640:3678)\n at async file:///Users/richard/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:2709:3796\n at async file:///Users/richard/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:2625:3877","timestamp":"2026-04-24T16:59:31.199Z"},{"error":"TypeError: Cannot read properties of null (reading 'effortLevel')\n at hH0 (file:///Users/richard/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:1845:3909)\n at ew (file:///Users/richard/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:2207:4166)\n at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n at async file:///Users/richard/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:2709:1990\n at async file:///Users/richard/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:2709:2831\n at async J07 (file:///Users/richard/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:2640:4939)\n at async rK1 (file:///Users/richard/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:2640:3678)\n at async file:///Users/richard/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:2709:3796\n at async file:///Users/richard/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:2625:3877","timestamp":"2026-04-24T16:59:31.678Z"},{"error":"TypeError: Cannot read properties of null (reading 'effortLevel')\n at hH0 (file:///Users/richard/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:1845:3909)\n at ew (file:///Users/richard/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:2207:4166)\n at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n at async file:///Users/richard/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:2709:1990\n at async file:///Users/richard/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:2709:2831\n at async J07 (file:///Users/richard/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:2640:4939)\n at async rK1 (file:///Users/richard/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:2640:3678)\n at async file:///Users/richard/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:2709:3796\n at async file:///Users/richard/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:2625:3877","timestamp":"2026-04-24T16:59:32.034Z"}]

TL;DR

The issue is likely caused by a null value being passed to a function that expects an object with an 'effortLevel' property, and a potential workaround is to check the input data for null values before processing.

Guidance

• The error messages indicate a TypeError caused by trying to read properties of null, specifically 'effortLevel', which suggests that the input data is missing or null.
• To mitigate this issue, you can add null checks before processing the input data to ensure that it is not null or undefined.
• You can also try to identify the source of the null input data and fix the issue at the root cause.
• Additionally, you can try to update the code to handle null input data more robustly, such as by providing a default value or skipping the processing of null data.

Example

if (inputData && inputData.effortLevel) {
  // process the input data
} else {
  // handle the null or missing input data
}

Notes

The provided error messages are all similar and indicate a TypeError caused by trying to read properties of null. Without more information about the code and the input data, it is difficult to provide a more specific solution.

Recommendation

Apply workaround: Add null checks to the input data before processing to prevent the TypeError. This will allow the code to handle null input data more robustly and prevent the error from occurring.