Javascript 电路编译错误：无法将NQ类型转换为QEX

我目前正在使用零知识证明，因此我使用Node.js及其circom和snarkjs包

我正在尝试使用以下电路运行

circom circuit.circom--r1cs--wasm--sym

：

template Accum() {
    signal private input a;
    signal private input b;
    signal input n;
    signal output c;

    c <== (a**b) % n;
}

component main = Accum();

我的理解是，这个错误与我使用的求幂和模有关，但我无法纠正它

提前感谢。

您必须作为单独的模板或函数来实现。该页面还为您提供了可以实现的伪代码。您必须作为单独的模板或函数实现。该页面还提供了一个可以实现的伪代码。

Error: Type NQ can not be converted to QEX
    at LCAlgebra.toQEX (/usr/local/lib/node_modules/circom/src/lcalgebra.js:433:19)
    at execConstrain (/usr/local/lib/node_modules/circom/src/construction_phase.js:931:37)
    at execSignalAssignConstrain (/usr/local/lib/node_modules/circom/src/construction_phase.js:943:5)
    at exec (/usr/local/lib/node_modules/circom/src/construction_phase.js:110:20)
    at execBlock (/usr/local/lib/node_modules/circom/src/construction_phase.js:534:9)
    at instantiateComponent (/usr/local/lib/node_modules/circom/src/construction_phase.js:521:9)
    at execInstantiateComponet (/usr/local/lib/node_modules/circom/src/construction_phase.js:463:9)
    at execAssignement (/usr/local/lib/node_modules/circom/src/construction_phase.js:364:31)
    at exec (/usr/local/lib/node_modules/circom/src/construction_phase.js:106:20)
    at execBlock (/usr/local/lib/node_modules/circom/src/construction_phase.js:534:9)
Type NQ can not be converted to QEX