[WD21] How to fix missing .NET assemblies?

[WD21] How to fix missing .NET assemblies?

Hi all,

When trying to convert the "WD XMLSign" sample program (from LST103 for WD20. It uses the .NET assemblies supplied with the operating system) to WD21, I get the following errors:

COL_XMLSIGN
Error:The 'cspparameters' type is unknown.
COL_XMLSIGN.XMLDocumentVérifieSignature, Local Procedure, line 13, column 53

The code:
clCSPParamètre is System.Security.Cryptography.cspparameters


Error:The 'RSACryptoServiceProvider' type is unknown.
COL_XMLSIGN.XMLDocumentVérifieSignature, Local Procedure, line 21, column 47

The code:
clCléRSA is System.Security.Cryptography.RSACryptoServiceProvider(clCSPParamètre)


Error:The 'RSACryptoServiceProvider' type is unknown.
COL_XMLSIGN.XMLDocumentSigne, Local Procedure, line 21, column 47

The code:
clCléRSA is System.Security.Cryptography.RSACryptoServiceProvider(clCSPParamètre)


Error:The 'StreamWriter' type is unknown.
COL_XMLSIGN.XMLDocumentSigne, Local Procedure, line 58, column 28

The code:
clWriter is System.IO.StreamWriter(clChaîneXML, Encoding.UTF8)

Error:The 'StreamReader' type is unknown.
COL_XMLSIGN.XMLDocumentSigne, Local Procedure, line 66, column 28

The code:
clReader is System.io.StreamReader(clChaîneXML)


Error:The 'MemoryStream' type is unknown.
COL_XMLSIGN.XMLDocumentSigne, Local Procedure, line 57, column 31

The code:
clReader is System.io.StreamReader(clChaîneXML)


Error:The 'cspparameters' type is unknown.
COL_XMLSIGN.XMLDocumentSigne, Local Procedure, line 13, column 53

The code:
clCléRSA is System.Security.Cryptography.RSACryptoServiceProvider(clCSPParamètre)

I already tried reloading the .NET assemblies, but it didn't help.
How can I fix these?

Best regards
Ola