<xs:element minOccurs="1" maxOccurs="1" ref="SpdHeader"/>\r
<xs:element minOccurs="0" maxOccurs="1" ref="LibraryClassDeclarations"/>\r
<xs:element minOccurs="0" maxOccurs="1" ref="PackageDependencies"/>\r
- <xs:element minOccurs="1" maxOccurs="1" ref="MsaFiles"/>\r
+ <xs:element minOccurs="0" maxOccurs="1" ref="MsaFiles"/>\r
<xs:element minOccurs="0" maxOccurs="1" ref="PackageHeaders"/>\r
<xs:element minOccurs="0" maxOccurs="1" ref="GuidDeclarations"/>\r
<xs:element minOccurs="0" maxOccurs="1" ref="ProtocolDeclarations"/>\r