[Error] TypeError: i64 not allowed as return type or argument to an imported function
        [f] ut (framework-a4fd281a1981cd6d009d.js:1:16748)
        [f] mt (framework-a4fd281a1981cd6d009d.js:1:17899)
        [f] L (framework-a4fd281a1981cd6d009d.js:1:115080)
        [f] W (framework-a4fd281a1981cd6d009d.js:1:2282)
        [f] Jt (framework-a4fd281a1981cd6d009d.js:1:23856)
        [f] Zt (framework-a4fd281a1981cd6d009d.js:1:23074)
        [N] Zt
        [f] (anonymous function) (framework-a4fd281a1981cd6d009d.js:1:128011)
        [f] F (framework-a4fd281a1981cd6d009d.js:1:114857)
        [f] Xt (framework-a4fd281a1981cd6d009d.js:1:22889)
        [N] Xt

I get that error when I click “Run” with the sample code in Safari.