ODK for crop data collection

hey everybody, i'm using ODK collect for crop data collection, after building my form into odkbuild, i do theese two modification

then when i try to use the form on my phone i have this error:
org.javarosa.xform.parse.xformparseexception: xml syntax error at line: 1, column: 2!

so can u help me guys.
thank you.

Can you please post your entire form, preferably the ODKBuild json source, as this will help debug what the precise problem is (which may or may not be these two appearances...)

thank you , the probleme is resolved.