Plabon Modak

I am getting the following error while running make command: ``` /tmp/cchgDDEW.o: In function `ec_key_public_key_to_bin': ecies_openssl.c:(.text+0x8f): undefined reference to `EC_KEY_get0_group' ecies_openssl.c:(.text+0x9f): undefined reference to `EC_KEY_get0_public_key' ecies_openssl.c:(.text+0xa8): undefined reference to `BN_new'...

I guess, It's related to [this](https://github.com/AbdulRahmanAlHamali/flutter_typeahead/issues/392). Library needs to excludes null aware operators for `WigetsBinding`

Is there any solution for this bug? The same issue I am facing search is not triggered with a predefined text.