当我在我的项目中添加此库并尝试构建我的应用程序时，它会出现以下错误：
Undefined symbols for architecture armv7:
"Number<double>::Number(double const&)", referenced from:
Log::simplify() const in functions.o
Power::simplify() const in functions.o
"Number<int>::Number(int const&)", referenced from:
operator+(Symbolic const&, int const&) in symbolicc++.o
operator-(Symbolic const&) in symbolicc++.o
operator/(Symbolic const&, Symbolic const&) in symbolicc++.o
sqrt(Symbolic const&) in symbolicc++.o
Symbolic zero<Symbolic>(Symbolic) in symbolicc++.o
Product::simplify() const in product.o
integrate(Symbolic const&, Symbolic const&) in integrate.o
...
ld: symbol(s) not found for architecture armv7
clang: error: linker command failed with exit code 1 (use -v to see invocation)