# \[Fatal Error\] '' is not a valid GUID value while upgrading to RemObjects Remoting SDK for Delphi - 9.3.105.1337
**URL:** https://talk.remobjects.com/t/fatal-error-is-not-a-valid-guid-value-while-upgrading-to-remobjects-remoting-sdk-for-delphi-9-3-105-1337/15301
**Category:** Remoting SDK
**Created:** [January 17, 2018, 3:58am UTC](https://talk.remobjects.com/t/fatal-error-is-not-a-valid-guid-value-while-upgrading-to-remobjects-remoting-sdk-for-delphi-9-3-105-1337/15301 "2018-01-17T03:58:36Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@jiten.g.s001](https://talk.remobjects.com/u/jiten.g.s001)
#### Post date: [January 17, 2018, 3:58am UTC](https://talk.remobjects.com/t/fatal-error-is-not-a-valid-guid-value-while-upgrading-to-remobjects-remoting-sdk-for-delphi-9-3-105-1337/15301/1 "2018-01-17T03:58:37Z")
Hi,
We have a legacy project in Delphi 7 and we are upgrading to Delphi Tokyo. We have installed Delphi Tokyo and RemObjects Remoting SDK for Delphi - 9.3.105.1337.
When I open my Delphi 7 application in Delphi Tokyo and compile then suddenly I get following error.
**‘’ is not a valid GUID value**
**[Fatal Error] ‘’ is not a valid GUID value**
And I am getting that same error when I try to open **Service Builder** from Delphi IDE to check the library details
 .
**I also checked following link of same kind and Recompiled BuildPackages\_D25.groupproj manually in IDE but no success. Still I am getting same error when I compile my project.**
> [@\[Fatal Error\] '' is not a valid GUID value](https://talk.remobjects.com/t/fatal-error-is-not-a-valid-guid-value/15188/2):
>
> Can you specify a bit more details about it. what version of Delphi you are using what unit and line generates it? just for checking - under 9.3 you mean 9.3.105.1351 ?
Please help me. I have attached image file also.
---
### Author:  [@EvgenyK](https://talk.remobjects.com/u/EvgenyK)
#### Post date: [January 17, 2018, 9:08am UTC](https://talk.remobjects.com/t/fatal-error-is-not-a-valid-guid-value-while-upgrading-to-remobjects-remoting-sdk-for-delphi-9-3-105-1337/15301/2 "2018-01-17T09:08:14Z")
can you attach your .RODL here or send it directly to support@, pls?
---
### Author:  [@jiten.g.s001](https://talk.remobjects.com/u/jiten.g.s001)
#### Post date: [January 19, 2018, 7:01am UTC](https://talk.remobjects.com/t/fatal-error-is-not-a-valid-guid-value-while-upgrading-to-remobjects-remoting-sdk-for-delphi-9-3-105-1337/15301/3 "2018-01-19T07:01:51Z")
Thanks for the reply.
Sorry EvgenyK, I cannot attach that file here as my client refused to attach. But following are little detail about the **RODL Intf, Invk and Impl** file details…
Actually I found that if I create a new RODL file then it would work fine. But when I upgrade the RODL file from Remobjects SDK old version in Delphi 7 to new version 9.3.105.1337 in Delphi TOkyo then only I get that error.
any solution…Please..
---
### Author:  [@EvgenyK](https://talk.remobjects.com/u/EvgenyK)
#### Post date: [January 19, 2018, 7:45am UTC](https://talk.remobjects.com/t/fatal-error-is-not-a-valid-guid-value-while-upgrading-to-remobjects-remoting-sdk-for-delphi-9-3-105-1337/15301/4 "2018-01-19T07:45:08Z")
Looks like, your RODL is broken - it has some problems.
it was a reason why I asked for your RODL.
if you have old version of ROD - try to open your RODL in ServiceBuilder of that version and check it for errors (Tools-\>Check Library for Problems) and fix them.
Later try to open it in Service Builder v9.3
---
### Author:  [@EvgenyK](https://talk.remobjects.com/u/EvgenyK)
#### Post date: [January 22, 2018, 12:41pm UTC](https://talk.remobjects.com/t/fatal-error-is-not-a-valid-guid-value-while-upgrading-to-remobjects-remoting-sdk-for-delphi-9-3-105-1337/15301/5 "2018-01-22T12:41:28Z")
pls open your RODL in any text editor like `Notepad` and add `UID="{guid}"` for your services.
old:
```auto
```
new:
```auto
```
note: you can use the same UID here and change it later in ServiceBuilder:
---
### Author:  [@ck](https://talk.remobjects.com/u/ck)
#### Post date: [January 25, 2018, 6:09am UTC](https://talk.remobjects.com/t/fatal-error-is-not-a-valid-guid-value-while-upgrading-to-remobjects-remoting-sdk-for-delphi-9-3-105-1337/15301/6 "2018-01-25T06:09:08Z")
– Forwarded reply from customer:
Hi EvgenyK,
Thanks lot for the reply. It solved that error and now I am able to open that RODL file in new Service Builder.
But I got following new errors after upgrade.
error E2291: E2291 Missing implementation of interface method MyGlobalSerivce.GetClientAppInfo
Actually I found that after upgrade in new Interface units it changed the String type to ANSIString and WideString type to UnicodeString . And it skipped Implementation unit generation during build.
MyGlobalSerivce.GetClientAppInfo structure
In Old
function GetClientAppInfo(const sAppName: String; out sVersion: String; out FileDateTime: DateTime; out sMessage: Widestring): Boolean;
In New now
function GetClientAppInfo(const sAppName: ROAnsiString; out sVersion: ROAnsiString; out FileDateTime: DateTime; out sMessage: UnicodeString): Boolean;
So my question
Is it correct or I need to do some settings in RODL file.
I guess this changes are because of Unicode changes in latest Delphi version. But in latest Delphi version also String is supported as its now Unicode.
Please correct me if I am wrong.
And I also noticed that new version created some more classes. I have attached the files created in Delphi 7 and Delphi 10 Tkoyo.
Please help me last time.
Thanks,
---
### Author:  [@EvgenyK](https://talk.remobjects.com/u/EvgenyK)
#### Post date: [January 25, 2018, 8:01am UTC](https://talk.remobjects.com/t/fatal-error-is-not-a-valid-guid-value-while-upgrading-to-remobjects-remoting-sdk-for-delphi-9-3-105-1337/15301/7 "2018-01-25T08:01:29Z")
it is correct. You are migrating from RO2 to RO9.
In RO2, `String` type meaned `AnsiString` and `WideString` type meaned unicode data.
in RO9, we use `UnicodeString` instead of `WideString` because this type isn’t supported on mobile platforms.
it is a reason, why compiler fails with `E2291`.
from `uROEncoding.pas`:
```auto
type
ROAnsiString = string;
```
`ROAnsiString` type shows that this parameter will be serialized as AnsiString.
I can suggest just copy service declaration from \_Intf and paste to \_Impl, i.e. replace
```auto
function Sum(const A: Integer; const B: Integer): Integer;
function GetServerTime: DateTime;
procedure GetClientAppInfo(const sAppName: String; out sVersion: String; out FileDateTime: DateTime; out sMessage: Widestring);
```
with
```auto
function Sum(const A: Integer; const B: Integer): Integer;
function GetServerTime: DateTime;
procedure GetClientAppInfo(const sAppName: ROAnsiString; out sVersion: ROAnsiString; out FileDateTime: DateTime; out sMessage: UnicodeString);
```
> [@](#):
>
> And I also noticed that new version created some more classes. I have attached the files created in Delphi 7 and Delphi 10 Tkoyo.
we deprecated `_Async` file and put async classes into `_Intf`