```javascript function test() { try { // } catch ({ message }) { // Unsupported catch parameter declaration. // } } ``` https://flow.org/try/#0GYVwdgxgLglg9mABFApgZygCgJSIN4BQixyATgJ75EnED0t1xAvohAIZQQAWimeiAW3Ro2AcxSImuQjToMaTAkyA not sure if this is related: ```javascript function test() { try { // } catch (err: { message: string }) { // Type annotations for catch parameters are not yet supported // } } ``` https://flow.org/try/#0GYVwdgxgLglg9mABFApgZygCgJSIN4BQixyATgJ75EnED0t1xAvohAIZQQAWimKppAFz5EAW3Ro2AcxTCMpGGClNchGnQY0mBJkA