如何在R中评估eval期间出了什么问题？

Part of the code:

部分代码：

Rengine re = getRengine();
re.eval("library(quantmod)");
re.eval("library(PerformanceAnalytics)");
re.eval("library(tseries)");
re.eval("library(FinTS)");
re.eval("library(rugarch)");
re.eval("library(robustbase)");

re.assign("arLagNum", new double[]{1});
re.assign("maLagNum", new double[]{1});
re.assign("archLagNum", new double[]{1});
re.assign("garchLagNum", new double[]{1});

re.eval("garchSpec <- ugarchspec(variance.model = list(model=\"iGARCH\", garchOrder=c(archLagNum,garchLagNum)), mean.model = list(armaOrder=c(arLagNum,maLagNum)), distribution.model=\"std\")");

re.assign("transformedTsValueData", new double[]{getSomeDoubles()};
re.eval("estimates <- ugarchfit(spec = garchSpec, data = transformedTsValueData, solver.control = list(trace = 1))");
re.eval("estimates");
Rengine re = getRen