执行GDL命令时找不到过程和函数

Question

我最近安装了GDL，因为我没有IDL的许可证。

我试图运行和IDL (.pro)脚本来模拟系外行星凌日(使用exomoon)，我得到了一些问题：

GDL> .reset_session                                                 

(gdl:16530): Gtk-WARNING **: gtk_disable_setlocale() must be called before gtk_init()
GDL> 
GDL> restore, 'paramk63.save', /v
% Procedure not found: RESTORE
% Execution halted at: $MAIN$          
GDL> 
GDL> Per = PER
GDL> ap = A
% Variable is undefined: A
% Execution halted at: $MAIN$          
GDL> Rplan = RP
% Variable is undefined: RP
% Execution halted at: $MAIN$          
GDL> inc = INC
GDL> Pm = 1
GDL> Rmoon = 0.03
GDL> dmoon = 4.0
GDL> tetam0 = 0.0
GDL> dt = 1.0
GDL> wl = WL
GDL> 
GDL> eclipse_moon,Per,ap,Rplan,inc,Pm,Rmoon,dmoon,tetam0,dt,wl,/plot
% Compiled module: ECLIPSE_MOON.
% ECLIPSE_MOON: Ambiguous: Variable is undefined: MEAN or: Function not found: MEAN
% Execution halted at: ECLIPSE_MOON        23 /home/fabian/Downloads/eclipse_moon.pro
%                      $MAIN$          
GDL> 0:45 / 9:10
% ECLIPSE_MOON: Parser syntax error: unexpected token: 0
GDL> 

我在安装了IDL的linux上运行了同样的代码，它完全没有问题。

看起来我必须安装更多的东西。是那么回事吗？