Invalid signature

[dklesev]

I get this:

...
Deploying chain code with a and b set to 100 and 200 respectively
Caught an exception
org.hyperledger.fabric.sdk.exception.PeerException: Sending transaction to peer failed
        at org.hyperledger.fabric.sdk.EndorserClient.sendProposal(EndorserClient.java:59)
        at org.hyperledger.fabric.sdk.Peer.sendProposal(Peer.java:128)
        at org.hyperledger.fabric.sdk.Chain.sendDeploymentProposal(Chain.java:625)
        at org.hyperledger.fabric.sdkexample.End2EndSample.setup(End2EndSample.java:74)
        at org.hyperledger.fabric.sdkexample.End2EndSample.main(End2EndSample.java:25)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:282)
        at java.lang.Thread.run(Thread.java:745)
Caused by: io.grpc.StatusRuntimeException: UNKNOWN: The creator's signature over the proposal is not valid, err The signature is invalid
        at io.grpc.stub.ClientCalls.toStatusRuntimeException(ClientCalls.java:230)
        at io.grpc.stub.ClientCalls.getUnchecked(ClientCalls.java:211)
        at io.grpc.stub.ClientCalls.blockingUnaryCall(ClientCalls.java:144)
        at org.hyperledger.fabric.protos.peer.EndorserGrpc$EndorserBlockingStub.processProposal(EndorserGrpc.java:135)
        at org.hyperledger.fabric.sdk.EndorserClient.sendProposal(EndorserClient.java:55)
        ... 10 more
^C⏎